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Alternating Current Quiz

Class XII
Physics
Alternating Current
12 questions
MEDIUM

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Preview questions

1. What is the frequency of the alternating current in India?

50 Hz · 60 Hz · 100 Hz · 25 Hz

2. In an AC circuit, what does RMS value represent?

Peak value · Average value · Effective value · None of the above

3. What is the phase difference between voltage and current in a purely resistive AC circuit?

0 degrees · 90 degrees · 180 degrees · 45 degrees

4. In an inductive AC circuit, the current lags behind the voltage by how many degrees?

0 degrees · 90 degrees · 180 degrees · 45 degrees

5. What is the formula for the impedance in an RLC circuit?

Z = R + jX · Z = R - jX · Z = R + jXL · Z = R + jXC