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Answer: In India,
Frequency of alternating current = 50 Hz.
This frequency can vary from country to country.
Alternating current-
At a regular interval of time, when a current changes its magnitude and polarity then it is known as alternating current. This current reverses its direction to that of the Direct Current (DC- flows in a single direction). Alternating current is depicted as a waveform called a sine wave. The unit of alternating current is Hertz (Hz).
