Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

The magnetic field intensity of an infinite sheet of charge with charge density 36.5 units in air will be

A. 18.25
B. 11.25
C. 73
D. 1/36.5
Answer» B. 11.25
2.

Find the magnetic field intensity of a toroid of turns 40 and radius 20cm. The current carried by the toroid be 3.25A.

A. 103.45
B. 102
C. 105.7
D. 171
Answer» B. 102
3.

Find the magnetic field intensity at the radius of 6cm of a coaxial cable with inner and outer radii are 1.5cm and 4cm respectively. The current flowing is 2A.

A. 2.73
B. 3.5
C. 0
D. 1.25
Answer» D. 1.25
4.

Given the magnetic field is 2.4 units. Find the flux density in air(in 10-6 order).

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
5.

FIND_THE_MAGNETIC_FIELD_INTENSITY_OF_A_TOROID_OF_TURNS_40_AND_RADIUS_20CM._THE_CURRENT_CARRIED_BY_THE_TOROID_BE_3.25A.?$

A. 103.45
B. 102
C. 105.7
D. 171
Answer» B. 102
6.

The_magnetic_field_intensity_of_an_infinite_sheet_of_charge_with_charge_density_36.5_units_in_air_will_be$

A. 18.25
B. 11.25
C. 73
D. 1/36.5
Answer» B. 11.25
7.

Find the magnetic field intensity at the radius of 6cm of a coaxial cable with inner and outer radii are 1.5cm and 4cm respectively. The current flowing is 2A?

A. 2.73
B. 3.5
C. 0
D. 1.25
Answer» D. 1.25
8.

Find the magnetic field intensity due to a solenoid of length 12cm having 30 turns and current of 1.5A.

A. 250
B. 325
C. 175
D. 375
Answer» E.
9.

Find the height of an infinitely long conductor from point P which is carrying current of 6.28A and field intensity is 0.5 units.

A. 0.5
B. 2
C. 6.28
D. 1
Answer» C. 6.28
10.

Find the electric field when the magnetic field is given by 2sin t in air.

A. 8π x 10<sup>-7</sup> cos t
B. 4π x 10<sup>-7</sup> sin t
C. -8π x 10<sup>-7</sup> cos t
D. -4π x 10<sup>-7</sup> sin t
Answer» B. 4‚âà√¨‚àö√ë x 10<sup>-7</sup> sin t
11.

Given the magnetic field is 2.4 units. Find the flux density in air(in 10-6 order).

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
12.

Ampere law states that,

A. Divergence of H is same as the flux
B. Curl of D is same as the current
C. Divergence of E is zero
D. Curl of H is same as the current density
Answer» E.
13.

The magnetic flux density is directly proportional to the magnetic field intensity. State True/False.

A. True
B. False
Answer» B. False
14.

The H quantity is analogous to which component in the following?

A. B
B. D
C. E
D. V
Answer» D. V