Explore topic-wise MCQs in Physics.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Calculate the value of peak reverse voltage (P.I.V.) if the full-wave rectifier has an alternating voltage of 300 V.

A. 849 V
B. 800 V
C. 750 V
D. 870 V
Answer» B. 800 V
2.

What is the rms value of output current if the peak value of output current is given as 0.092 A?

A. 0.65 A
B. 6.5 A
C. 0.45 A
D. 0.065 A
Answer» E.
3.

Find the value of output direct current if the peak value of output current is given as 0.095 A.

A. 0.6
B. 0.060
C. 0.05
D. 6.06
Answer» C. 0.05
4.

An alternating voltage of 360 V, 50 Hz is applied to a full-wave rectifier. The internal resistance of each diode is 100 W. If RL = 5 kW, then what is the peak value of output current?

A. 0.9 A
B. 0.07 A
C. 0.097 A
D. 1.097 A
Answer» D. 1.097 A
5.

What is the form factor for a full-wave rectifier?

A. 1.11
B. 1.57
C. 2.62
D. 0.453
Answer» B. 1.57
6.

Identify the expression for rectification efficiency from the following.

A. = ( frac {ac , input , power , from , transformer , secondary}{dc , power , delivered , to , load} )
B. =dc power delivered to load ac input power from transformer secondary
C. =dc power delivered to load + ac input power from transformer secondary
D. = ( frac {dc , power , delivered , to , load}{ac , input , power , from , transformer , secondary} )
Answer» E.
7.

The ripple frequency of a full-wave rectifier is twice to that of a half-wave rectifier.

A. True
B. False
Answer» B. False
8.

What is the ripple factor for a half-wave rectifier?

A. 2.0
B. 1.21
C. 0.482
D. 0.877
Answer» C. 0.482
9.

How many main types of rectifiers are there?

A. 1
B. 5
C. 2
D. 4
Answer» D. 4
10.

What is a rectifier used for?

A. Convert ac voltage to dc voltage
B. Convert dc voltage to ac voltage
C. Measure resistance
D. Measure current
Answer» B. Convert dc voltage to ac voltage