Alternating Currents MCQ Questions Answers Electronics Engineering

 Alternating Currents MCQ Questions Answers Electronics Engineering

Here you will find information about the Alternating Currents MCQ of electronics engineering.If you are preparing for competitive exam then we provide Alternating Current PDF &  Alternating Current MCQ Questions Download here so you can take preparation from here.Here are the alternating Current Objective Questions we ask about the alternating current of electronics engineering-

Alternating Currents MCQ Alternating Current MCQ Questions Download alternating Current Objective Questions Alternating Current PDF


1) __________ will work only on d.c supply.

a) Electric lamp

b) Refrigerator

c) Heater

d) Electroplating

View Answer
Option – d)

2) When 200 V sinusoidal peak-to-peak wave is connected across an a.c. voltmeter, it will read …….

a) 141.4 V

b) 50 V

c) 70.7 V

d) none of the above

View Answer
Option – c)

3) The average value of a sinusoidal current is 100 A. its r.m.s. value is …….

a) 63.7 A

b) 70.7 A

c) 141.4 A

d) 111 A

View Answer
Option – d)

4) The peak factor of a half-wave rectified a.c. is ………..

a) 1.57

b) 2

c) 1.11

d) 1.4142

View Answer
Option – b)

5) The form factor of a sinusoidal wave is …………..

a) 1.414

b) 1.11

c) 2

d) 1.5

View Answer
Option – b)

6) A sine wave has a maximum value of 20 V. Its value at 1350 is……..

a) 10 V

b) 14.14 V

c) 15 V

d) 5 V

View Answer
Option – b)

7) A 100 V peak a.c. is as effective as ……….. d.c

a) 100 V

b) 50 V

c) 70.7 V

d) none of the above

View Answer
Option – c)

8) The r.m.s. value of sinusoidally varying current is ,………. That of its average value.

a) more than

b) less than

c) same as

d) none of the above

View Answer
Option – a)

9) The effective value 2 A d.c. current is

a) 1 A

b) 4 A

c) 16 A

d) 2 A

View Answer
Option – d)

10) What is the peak-to-peak value for 120 V a.c.?

a) 240 V

b) 480 V

c) 393 V

d) 391 V

View Answer
Option – c)
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