Question

Which of the following properties of an alternating current is correct?

• A. It reverses its direction periodically.
• B. Its frequency is 50Hz for households in India.
• C. An AC can be transmitted over long distances.
• D. All of these.

Answer 1

The correct option is D

All of these.

An alternating current is the one which changes its direction every $\frac{1}{100}$ second in Indian households and hence its frequency is 50 Hz. An advantage of the alternating current over direct current is that it can be transmitted over long distances without much loss of energy.