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Class 12 Physics AC Circuits Quiz

6 Questions

2 Views

Class 12 Physics AC Circuits Quiz

Created by

@MatureCognition

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Questions and Answers

In an AC circuit with a purely capacitive load, what is the phase relationship between the voltage and current?

They are in phase

Current leads voltage (correct)

There is no phase relationship

Voltage leads current

What is the frequency of the alternating current in a standard household electrical outlet?

60 Hz

40 Hz

50 Hz (correct)

70 Hz

What happens to the reactance of an inductor in an AC circuit when the frequency increases?

Becomes zero

Decreases

Increases (correct)

Remains constant

In an AC circuit, what happens to the reactance of an inductor when the frequency increases?

<p>It increases</p> Signup and view all the answers

In an AC circuit with a purely capacitive load, what is the phase relationship between the voltage and current?

<p>The current lags the voltage by 90 degrees</p> Signup and view all the answers

What is the frequency of the alternating current in a standard household electrical outlet in the United States?

<p>60 Hz</p> Signup and view all the answers

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