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Class XII Physics Quiz on Alternating Current

Class XII
Physics
Alternating Current
13 questions
HARD

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Preview questions

1. What is the RMS value of an alternating current (AC) given by I0?

I0/√2 · I0 · I0√2 · 2I0

2. In an AC circuit, what is the phase difference between voltage and current in a purely resistive circuit?

0 degrees · 90 degrees · 180 degrees · 45 degrees

3. What is the impedance in an RLC series circuit?

Z = R + jX · Z = R - jX · Z = √(R^2 + X^2) · Z = R + X

4. The average power consumed in an AC circuit is given by which formula?

P = VI · P = VIcosφ · P = V^2/R · P = I^2R

5. What is the unit of reactance?

Ohm · Farad · Henry · Volt

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