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Class XII Physics - Alternating Current Quiz

Class XII
Physics
Alternating Current
14 questions
MEDIUM

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Preview questions

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

50 Hz · 60 Hz · 30 Hz · 100 Hz

2. In an AC circuit, the voltage and current are represented as which of the following?

Scalars · Vectors · Complex numbers · Real numbers

3. What is the RMS value of an AC current?

I_peak / √2 · I_peak × √2 · I_peak · I_peak / 2

4. The average value of an AC current over one complete cycle is:

Zero · I_peak · I_rms · I_average

5. In a purely resistive AC circuit, the phase difference between voltage and current is:

0 degrees · 90 degrees · 180 degrees · 45 degrees