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AC
Question Practice

What is the primary reason alternating current (AC) is preferred over direct current (DC) in electrical systems?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Physics
Physics Part - I
ALTERNATING CURRENT
Question Bank

What is the primary reason alt...

Single Answer MCQ
Q-00085634

What is the primary reason alternating current (AC) is preferred over direct current (DC) in electrical systems?

1

AC can be transmitted over long distances more efficiently.

2

AC can only power small devices.

3

AC is less expensive to generate than DC.

4

AC is always safer than DC.

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Q1.

What type of waveform does the voltage supply from typical household mains represent?

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Q2.

Which of the following devices primarily uses alternating current?

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Q3.

What is meant by 'AC voltage' in simple harmonic motion?

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Q4.

When the AC voltage across a resistor increases, what happens to the current through the resistor?

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