For transformer given, turns ratio is equal to a, what will be the impedance of primary with respect to secondary?

a2 times the secondary impedance

Ideal transformer core has permeability equal to _____a) Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________

Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratio

Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratio

Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratioc) Voltage ratio

Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratioc) Voltage ratiod) Not proportional to any termsView Answer

Over fluxing protection is normally recommended for

Auto-transformers in power stations

Generator transformers in power stations

Auto-transformers in power stations

Station transformers in power stations

Laminated insulation, coated with varnish, is a staple adoption in transformer assemblage in order to

increase the reluctance of the magnetic path

reduce the reluctance of the magnetic path

minimize losses due to eddy currents

increase the reluctance of the magnetic path

increase the effect of eddy current

In a transformer, exciting current is made up of two components namely magnetizing current IM and core loss current IC, with negligible leakage impedance drop (V is supply voltage)

IM lags V by 90° whereas IC is out of phase with V

Both IM and IC lag supply voltage V by 90°

Both IM and IC are in phase with V

IM lags V by 90° whereas IC is in phase with V

IM lags V by 90° whereas IC is out of phase with V

In an autotransformer of voltage ratio \(\frac{{{V_1}}}{{{V_2}}},\;{V_1} > {V_2}\), the fraction of power transferred inductively is proportional to

\(\frac{{{V_1}}}{{\left( {{V_1} + {V_2}} \right)}}\)

\(\frac{{\left( {{V_1} - {V_2}} \right)}}{{\left( {{V_1} + {V_2}} \right)}}\)

\(\frac{{\left( {{V_1} - {V_2}} \right)}}{{{V_1}}}\)

In operating a 400 Hz transformer at 50 Hz:

Only voltage is reduced in the same proportion as the frequency

Only kVA is reduced in the same proportion as the frequency

Both voltage and kVA are reduced in the same proportion as the frequency

Assuming leakage flux to be negligible, when HV side of a single-phase 100 V/50 V, 50 Hz transformer is connected to 50 V, 25 Hz AC source, the core flux of the transformer is?

Four times that of the rated flux

Directions: The following question consists of two statements, one labelled as the ‘Statement (I)’ and the other as ‘Statement (II). Examine these two statements carefully and select the answer using the codes given below:Statement (I): Size of power transformer is inversely proportional to the operation frequency.Statement (II): Copper loss is proportional to frequency.

Statement (I) is false but Statement (II) is true

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Statement (I) is true but Statement (II) is false

Statement (I) is false but Statement (II) is true

Copper losses of a transformer are:

directly proportional to turn ratio

inversely proportional to turn ratio

inversely proportional to square root of turn ratio

directly proportional to square of turn ratio

In a transformer, the magnitude of mutual flux is:

Varies at low loads and constant at high loads

low at low loads and high at high loads

high at low loads and low at high loads

In the core-type two-winding transformer, the low-voltage winding is placed adjacent to the steel core, in order to

Reduce the chances of axial displacement with respect to the high-voltage winding placed outside

Facilitate dissipation of heat during the operation of the transformer

Minimize the amount of insulation required

Reduce the chances of axial displacement with respect to the high-voltage winding placed outside

Reduce the mutual radial stress between the two windings

293 + Mcqs in Ideal Transformer in Transformers Page 1 McqOptions

1.	For transformer given, turns ratio is equal to a, what will be the impedance of primary with respect to secondary?
A.	a2 times the secondary impedance
B.	a times secondary impedance
C.	secondary impedance/a
D.	secondary impedance/a2
Answer» E.

Discussion

2.	Which of the following is the wrong expression?
A.	i1N1=i2N2
B.	i1v1=i2v2
C.	i1N2=i2N1
D.	v2N1=v1N2
Answer» D. v2N1=v1N2

Discussion

3.	Which of the following is the expression for emf induced in primary with voltage applied to primary of an ideal transformer?
A.	e=V
B.	V= √2ecos ωt
C.	e= √2Vcos ωt
D.	Cannot say
Answer» D. Cannot say

Discussion

4.	Ideal transformer core has permeability equal to _____a) Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________
A.	Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratio
B.	Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratio
C.	Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratioc) Voltage ratio
D.	Infinite 8.Turns ratio of the transformer is directly proportional to ____________a) Resistance ratiob) Currents ratioc) Voltage ratiod) Not proportional to any termsView Answer
Answer» E.

Discussion

5.	A 10 kVA, 200 V/2000 V transformer is feeding a load resistance of 2.5 p.u. based on the rating of HV side. The actual value of load resistance referred to LV side?
A.	10 Ω
B.	100 Ω
C.	1000 Ω
D.	10000 Ω
Answer» B. 100 Ω

Discussion

6.	A transformer core is wound with a coil carrying alternating current at a frequency of 50 Hz. The hysteresis loop has an area of 60,000 units when the axes are drawn in units of 10-4 Wb m-2 and 102 Am-1. If the magnetization is uniform throughout the core volume of 0.01 m3, the power loss due to hysteresis will be
A.	300 W
B.	350 W
C.	400 W
D.	450 W
Answer» B. 350 W

Discussion

7.	At low frequencies the material used for the transformer core is
A.	copper
B.	silicon iron
C.	soft iron
D.	none
Answer» C. soft iron

Discussion

8.	Over fluxing protection is normally recommended for
A.	Generator transformers in power stations
B.	Auto-transformers in power stations
C.	Station transformers in power stations
D.	Distribution transformers
Answer» B. Auto-transformers in power stations

Discussion

9.	As compared to Δ-Δ bank, the capacity of the V-V bank of transformers is ______ percent.
A.	57.7
B.	66.7
C.	50
D.	86.6
Answer» B. 66.7

Discussion

10.	Laminated insulation, coated with varnish, is a staple adoption in transformer assemblage in order to
A.	reduce the reluctance of the magnetic path
B.	minimize losses due to eddy currents
C.	increase the reluctance of the magnetic path
D.	increase the effect of eddy current
Answer» C. increase the reluctance of the magnetic path

Discussion

11.	A 500 KVA transformer has constant losses of 500 W and copper loss at full load are 2000 W. Then at what load, is the efficiency maximum?
A.	250 KVA
B.	500 KVA
C.	1000 KVA
D.	125 KVA
Answer» B. 500 KVA

Discussion

12.	If the net copper loss at full load of a one-phase transformer is Pcu W, what will be the copper loss of the same transformer with 25% of full load?
A.	Pcu/4
B.	Pcu/16
C.	Pcu/8
D.	Pcu/2
Answer» C. Pcu/8

Discussion

13.	Copper losses and core losses are
A.	Generator losses
B.	Transformer losses
C.	Motor losses
D.	Voltmeter and ammeter losses
Answer» C. Motor losses

Discussion

14.	A 5 kVA, 50 V/100 V, single-phase transformer has a secondary terminal voltage of 95 V when loaded. The regulation of the transformer is
A.	4.5%
B.	9%
C.	5%
D.	1%
Answer» D. 1%

Discussion

15.	An iron cored choke coil when connected to a 15 V DC supply draws a current of 1.5 A. When connected to 230 V, 50 hz supply, it takes 2 A current and consume 60 W. The iron loss in the core is:
A.	20 W
B.	40 W
C.	7.5 W
D.	10 W
Answer» B. 40 W

Discussion

16.	A transformer in which the primary voltage is greater than the secondary voltage is called
A.	step-up transformer
B.	step-down transformer
C.	one-to-one transformer
D.	none of the above
Answer» C. one-to-one transformer

Discussion

17.	A single-phase, 1100/200 V, 50Hz transformer has a core with a square cross-section, each side being 15 cm. The maximum flux density in the core is not to exceed 12000 lines/cm2. The primary and secondary number of turns are, respectively
A.	1100 and 200
B.	550 and 100
C.	275 and 75
D.	184 and 33
Answer» E.

Discussion

18.	A transformer rated for 5 kVA, 400 V/200 V, 50 Hz, has a leakage impedance of z = r + jx referred to HV side. Its voltage regulation at full load will be maximum at a power factor of:
A.	r/z leading
B.	r/x lagging
C.	x/z leading
D.	r/z lagging
Answer» E.

Discussion

19.	A balanced (positive sequence) three-phase AC voltage source is connected to a balanced, start connected through a star-delta transformer as shown in the figure. The line-to-line voltage rating is 230 V on the star side, and 115 V on the delta side. If the magnetizing current is neglected and \({\bar I_s} = 100\angle 0^\circ A,\) then what is the value of \({\bar I_p}\) in Ampere?
A.	\(50\angle 30^\circ\)
B.	\(50\angle - 30^\circ\)
C.	\(50\sqrt 3 \angle 30^\circ\)
D.	\(200\angle 30^\circ\)
Answer» B. \(50\angle - 30^\circ\)

Discussion

20.	In a 440 V, 50 Hz transformer, the total iron loss is 2300 W. When the applied voltage is 220 V at 25 Hz, the total iron loss is 750 W. The eddy current loss at the normal voltage and frequency will be
A.	1600 W
B.	1400 W
C.	1200 W
D.	1000 W
Answer» B. 1400 W

Discussion

21.	In order to keep the magnetisation current at the same level, the v/f ratio of the transformer should be:
A.	equal to the turns ratio
B.	Fixed
C.	Varied
D.	equal to zero
Answer» C. Varied

Discussion

22.	If the reciprocal of transformation ratio of a transformer is 11. The ratio of current in the secondary to primary is:
A.	1/11
B.	11
C.	11/12
D.	2/11
Answer» C. 11/12

Discussion

23.	In T-T connection, the percentage tapping of main transformer and teaser transformer respectively are
A.	50%, 86.6%
B.	50%, 5%
C.	86.6%, 86.6%
D.	86.6%, 50%
Answer» B. 50%, 5%

Discussion

24.	1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be
A.	30 W
B.	More than 30 W
C.	Less than 30 W
D.	Zero watt
Answer» E.

Discussion

25.	In a transformer, exciting current is made up of two components namely magnetizing current IM and core loss current IC, with negligible leakage impedance drop (V is supply voltage)
A.	Both IM and IC lag supply voltage V by 90°
B.	Both IM and IC are in phase with V
C.	IM lags V by 90° whereas IC is in phase with V
D.	IM lags V by 90° whereas IC is out of phase with V
Answer» D. IM lags V by 90° whereas IC is out of phase with V

Discussion

26.	A transformer has 400 W as iron loss at full load. The iron loss at half full load will be _______.
A.	400 W
B.	800 W
C.	100 W
D.	200 W
Answer» B. 800 W

Discussion

27.	If transformer is working at leading power factor then the voltage regulation can be
A.	zero
B.	negative
C.	positive
D.	all of the above
Answer» E.

Discussion

28.	A 2000 V/200 V, 20 kVA, two winding, single-phase transformer is reconnected as a step up auto-transformer having 200 V/2200 V ratings. Then the power rating for the autotransformer will be
A.	160 kVA
B.	180 kVA
C.	200 kVA
D.	220 kVA
Answer» E.

Discussion

29.	A single-phase 111-V, 50-Hz supply is connected to a coil with 200 turns of a coil-core assembly as shown in the given figure. Find the magnitude of maximum flux in the core.
A.	10 mWb
B.	2.5 mWb
C.	1 mWb
D.	25 mWb
Answer» C. 1 mWb

Discussion

30.	In an autotransformer of voltage ratio \(\frac{{{V_1}}}{{{V_2}}},\;{V_1} > {V_2}\), the fraction of power transferred inductively is proportional to
A.	\(\frac{{{V_1}}}{{\left( {{V_1} + {V_2}} \right)}}\)
B.	\(\frac{{{V_2}}}{{{V_1}}}\)
C.	\(\frac{{\left( {{V_1} - {V_2}} \right)}}{{\left( {{V_1} + {V_2}} \right)}}\)
D.	\(\frac{{\left( {{V_1} - {V_2}} \right)}}{{{V_1}}}\)
Answer» E.

Discussion

31.	Natural air cooling is used for transformer of rating up to:
A.	5 -10 kVA
B.	2000 kVA
C.	3000 kVA
D.	50 MVA
Answer» B. 2000 kVA

Discussion

32.	In operating a 400 Hz transformer at 50 Hz:
A.	Only voltage is reduced in the same proportion as the frequency
B.	Only kVA is reduced in the same proportion as the frequency
C.	Both voltage and kVA are reduced in the same proportion as the frequency
D.	None of the above
Answer» D. None of the above

Discussion

33.	In a 400 / 230 V single-phase 50 Hz transformer, the primary winding is connected to 400 V. Then the value of (EMF per turn in the primary winding) / (EMF per turn in the secondary winding) is:
A.	0
B.	1.73
C.	1
D.	0.5
Answer» D. 0.5

Discussion

34.	Primary winding of a transformer is __________.
A.	connected to the supply mains
B.	always low voltage winding
C.	connected to the load
D.	always high voltage winding
Answer» B. always low voltage winding

Discussion

35.	A three-winding transformer is connected to an AC voltage source as shown in the figure. The number of turns are as follows: \({N_1} = 100,\;{N_2} = 50,\;{N_3} = 50\). If the magnetizing current is neglected, and the currents in two windings are \({\bar I_2} = 2\angle 30^\circ A\;and\;{\bar I_3} = 2\angle 150^\circ A\), then what is the value of the current \({\bar I_1}\) in Ampere?
A.	\(1\angle 90^\circ\)
B.	\(1\angle 270^\circ\)
C.	\(4\angle 90^\circ\)
D.	\(4\angle 270^\circ\)
Answer» B. \(1\angle 270^\circ\)

Discussion

36.	Assuming leakage flux to be negligible, when HV side of a single-phase 100 V/50 V, 50 Hz transformer is connected to 50 V, 25 Hz AC source, the core flux of the transformer is?
A.	Same as that of rated flux
B.	Half that of the rated flux
C.	Twice that of the rated flux
D.	Four times that of the rated flux
Answer» B. Half that of the rated flux

Discussion

37.	A 200 kVA transformer has an iron loss of 1 kW and a full load copper loss of 2 kW. Its load kVA, corresponding to the maximum efficiency is ________
A.	100 kVA
B.	70.7 kVA
C.	200 kVA
D.	141.4 kVA
Answer» E.

Discussion

38.	A TT transformer cannot be paralleled with _____ transformer.
A.	VV
B.	YΔ
C.	YY
D.	ΔΔ
Answer» C. YY

Discussion

39.	A 250 kVA, 11000 V/400 V and 50 Hz single-phase transformer has 80 turns on the secondary, what is the maximum value of flux?
A.	2475 mWb
B.	0.2 mWb
C.	22.5 mWb
D.	55.2 mWb
Answer» D. 55.2 mWb

Discussion

40.	A 2000/200 V, 20 kVA, 50Hz single phase transformer has 66 turns in the secondary winding. The number of turns on primary will be ______.
A.	550 turns
B.	440 turns
C.	330 turns
D.	660 turns
Answer» E.

Discussion

41.	Directions: The following question consists of two statements, one labelled as the ‘Statement (I)’ and the other as ‘Statement (II). Examine these two statements carefully and select the answer using the codes given below:Statement (I): Size of power transformer is inversely proportional to the operation frequency.Statement (II): Copper loss is proportional to frequency.
A.	Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
B.	Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
C.	Statement (I) is true but Statement (II) is false
D.	Statement (I) is false but Statement (II) is true
Answer» D. Statement (I) is false but Statement (II) is true

Discussion

42.	Copper losses of a transformer are:
A.	directly proportional to turn ratio
B.	inversely proportional to turn ratio
C.	inversely proportional to square root of turn ratio
D.	directly proportional to square of turn ratio
Answer» E.

Discussion

43.	An Isolation transformer has primary to the secondary turns ratio of
A.	1: 2
B.	2: 1
C.	1: 1
D.	Can be any ratio
Answer» D. Can be any ratio

Discussion

44.	In a transformer, the magnitude of mutual flux is:
A.	Varies at low loads and constant at high loads
B.	low at low loads and high at high loads
C.	high at low loads and low at high loads
D.	Same at all loads
Answer» E.

Discussion

45.	In the core-type two-winding transformer, the low-voltage winding is placed adjacent to the steel core, in order to
A.	Facilitate dissipation of heat during the operation of the transformer
B.	Minimize the amount of insulation required
C.	Reduce the chances of axial displacement with respect to the high-voltage winding placed outside
D.	Reduce the mutual radial stress between the two windings
Answer» C. Reduce the chances of axial displacement with respect to the high-voltage winding placed outside

Discussion

46.	If an ideal transformer has an inductive load element at port 2 as shown in the figure below, the equivalent inductance at port 1 is
A.	\(nL\)
B.	\({n^2}L\)
C.	\(\frac{n}{L}\)
D.	\(\frac{{{n^2}}}{L}\)
Answer» C. \(\frac{n}{L}\)

Discussion

47.	Consider the following losses for short circuit test on a transformer:1. Copper loss2. Copper and iron losses3. Eddy current and hysteresis losses4. Friction and windage lossesWhich of the above is/are correct?
A.	1 only
B.	2 only
C.	3 only
D.	2, 3 and 4
Answer» B. 2 only

Discussion

48.	A transformer T1 with impedance of Z1 = 0.1 + j0.4 is connected in parallel with another transformer T2 having impedance of Z2 = 0.05 + j0.2. The ratio of load shared by them (T1: T2) is:
A.	Equal
B.	1: 2
C.	2: 1
D.	2: 3
Answer» C. 2: 1

Discussion

49.	A single-phase 100 kVA, 1000 V / 100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is
A.	4.8
B.	6.8
C.	8.8
D.	10.8
Answer» B. 6.8

Discussion

50.	A transformer has an efficiency of 85% and works on 100V, 4 kVA. If the secondary voltage is 200 V then primary current is:
A.	10 A
B.	40 A
C.	20 A
D.	30 A
Answer» C. 20 A

Discussion

Explore topic-wise MCQs in Transformers.

For transformer given, turns ratio is equal to a, what will be the impedance of primary with respect to secondary?

Which of the following is the wrong expression?

Which of the following is the expression for emf induced in primary with voltage applied to primary of an ideal transformer?

Ideal transformer core has permeability equal to _____a) Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ____________

A 10 kVA, 200 V/2000 V transformer is feeding a load resistance of 2.5 p.u. based on the rating of HV side. The actual value of load resistance referred to LV side?

At low frequencies the material used for the transformer core is

Over fluxing protection is normally recommended for

As compared to Δ-Δ bank, the capacity of the V-V bank of transformers is ______ percent.

Laminated insulation, coated with varnish, is a staple adoption in transformer assemblage in order to

A 500 KVA transformer has constant losses of 500 W and copper loss at full load are 2000 W. Then at what load, is the efficiency maximum?

If the net copper loss at full load of a one-phase transformer is Pcu W, what will be the copper loss of the same transformer with 25% of full load?

Copper losses and core losses are

A 5 kVA, 50 V/100 V, single-phase transformer has a secondary terminal voltage of 95 V when loaded. The regulation of the transformer is

An iron cored choke coil when connected to a 15 V DC supply draws a current of 1.5 A. When connected to 230 V, 50 hz supply, it takes 2 A current and consume 60 W. The iron loss in the core is:

A transformer in which the primary voltage is greater than the secondary voltage is called

A single-phase, 1100/200 V, 50Hz transformer has a core with a square cross-section, each side being 15 cm. The maximum flux density in the core is not to exceed 12000 lines/cm2. The primary and secondary number of turns are, respectively

A transformer rated for 5 kVA, 400 V/200 V, 50 Hz, has a leakage impedance of z = r + jx referred to HV side. Its voltage regulation at full load will be maximum at a power factor of:

In a 440 V, 50 Hz transformer, the total iron loss is 2300 W. When the applied voltage is 220 V at 25 Hz, the total iron loss is 750 W. The eddy current loss at the normal voltage and frequency will be

In order to keep the magnetisation current at the same level, the v/f ratio of the transformer should be:

If the reciprocal of transformation ratio of a transformer is 11. The ratio of current in the secondary to primary is:

In T-T connection, the percentage tapping of main transformer and teaser transformer respectively are

1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be

In a transformer, exciting current is made up of two components namely magnetizing current I­M and core loss current IC, with negligible leakage impedance drop (V is supply voltage)

A transformer has 400 W as iron loss at full load. The iron loss at half full load will be _______.

If transformer is working at leading power factor then the voltage regulation can be

A 2000 V/200 V, 20 kVA, two winding, single-phase transformer is reconnected as a step up auto-transformer having 200 V/2200 V ratings. Then the power rating for the autotransformer will be

A single-phase 111-V, 50-Hz supply is connected to a coil with 200 turns of a coil-core assembly as shown in the given figure. Find the magnitude of maximum flux in the core.

In an autotransformer of voltage ratio \(\frac{{{V_1}}}{{{V_2}}},\;{V_1} > {V_2}\), the fraction of power transferred inductively is proportional to

Natural air cooling is used for transformer of rating up to:

In operating a 400 Hz transformer at 50 Hz:

In a 400 / 230 V single-phase 50 Hz transformer, the primary winding is connected to 400 V. Then the value of (EMF per turn in the primary winding) / (EMF per turn in the secondary winding) is:

Primary winding of a transformer is __________.

Assuming leakage flux to be negligible, when HV side of a single-phase 100 V/50 V, 50 Hz transformer is connected to 50 V, 25 Hz AC source, the core flux of the transformer is?

A 200 kVA transformer has an iron loss of 1 kW and a full load copper loss of 2 kW. Its load kVA, corresponding to the maximum efficiency is ________

A TT transformer cannot be paralleled with _____ transformer.

A 250 kVA, 11000 V/400 V and 50 Hz single-phase transformer has 80 turns on the secondary, what is the maximum value of flux?

A 2000/200 V, 20 kVA, 50Hz single phase transformer has 66 turns in the secondary winding. The number of turns on primary will be ______.

Copper losses of a transformer are:

An Isolation transformer has primary to the secondary turns ratio of

In a transformer, the magnitude of mutual flux is:

In the core-type two-winding transformer, the low-voltage winding is placed adjacent to the steel core, in order to

If an ideal transformer has an inductive load element at port 2 as shown in the figure below, the equivalent inductance at port 1 is

Consider the following losses for short circuit test on a transformer:1. Copper loss2. Copper and iron losses3. Eddy current and hysteresis losses4. Friction and windage lossesWhich of the above is/are correct?

A transformer T1 with impedance of Z1 = 0.1 + j0.4 is connected in parallel with another transformer T2 having impedance of Z2 = 0.05 + j0.2. The ratio of load shared by them (T1: T2) is:

A single-phase 100 kVA, 1000 V / 100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is

A transformer has an efficiency of 85% and works on 100V, 4 kVA. If the secondary voltage is 200 V then primary current is:

Ideal transformer core has permeability equal to _a) Zerob) Non-zero finitec) Negatived) Infinite 8.Turns ratio of the transformer is directly proportional to ________

In a transformer, exciting current is made up of two components namely magnetizing current IM and core loss current IC, with negligible leakage impedance drop (V is supply voltage)