Home Physics Alternating Current Test Online Preparation Mcqs

Physics Alternating Current Test Online Preparation Mcqs

Physics Alternating Current Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. A 100μF capacitor with 12V source in series having frequency 50Hz, will offer a capacitive reactance of about _________.
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. A choke is used as a resistance in _______
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. A choke coil has
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. At resonance the value of the power factor in an L-C-R series circuit is ______
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Electromagnetic waves consists of _________.
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Electromagnetic waves travel in free space with the speed of _______.
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. What is the self inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1?
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. An alternating current is represented by the equation I = Iosinωt, which of the following equation represents an alternating current of frequency and amplitude twice that of the above current?
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The frequency of a circuit consisting of a capacitance C and resistor R is ________.
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The value of the steady current, which when flowing through the same resistor produces heat at the same rate as the mean rate of heat produced by the alternating current, is _______
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. An ideal choke would be
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. If capacitance of L-C circuit is made four times than frequency of the circuit becomes _______.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Choose the correct statement. In the case of AC circuit, ohm’s law holds for ______
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. When a pure inductor of inductance L, and a pure capacitor of capacitance C are connected in parallel to a sinusoidal potential difference V, the potential difference across both L&C will be ______.
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. An inductor may store energy in _________
A.
B.
C.
D.

Question 15 of 15


 

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