Question

in an AC circuit direction of electric current get reversedafter every 2×10^-2. what is frequency of a.c​

Answer 1

Frequency=1/time period
=1/0.02
=50 Hz

Answer 2

Given,
Time period of AC circuit=0.02s
To Find,
Frequency of AC circuit.

Solution,

We know for frequency we have a formula that.

frequency=1/time period

So,frequency=1/0.02s

                       =50Hz

Hence, frequency of AC circuit is 50Hz.