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. An A.C series circuit contain 4Ω resistance and 3-Ω inductive resistance. The impedance of the circuit is:
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. Two identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other, the current in _________.
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

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

Question 3 of 15

Question 4 of 15

4. Average value of current and voltage over a cycle of AC is
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Natural or resonant frequency of an LC circuit is _________.
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Ammeter connected in an AC circuit measures _______.
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. 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 7 of 15

Question 8 of 15

8. A changing magnetic flux produces around itself and induced ______.
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. In capacitive circuit, the current _________.
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The phase angle between the voltage and the current in an AC circuit consisting of a resistance 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. Electromagnetic waves consists of _________.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. The power factor of an ac circuit has the value
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. An alternating current of r.m.s value of 2A and a steady direct current I flowing through identical resistors dissipate heat at the same rate. What is the current I?
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. Maxwell derived mathematically that the velocity of the electromagnetic waves is ________.
A.
B.
C.
D.

Question 15 of 15


 

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