Question

If AC changes direction every 1/100 second...How's the frequency 50Hz? It should be 100Hz because frequency is the reciprocal of time period​

Answer 1

Answer:

Explanation:1/100 is the time taken by the ac to complete only half the cycle i.e. T/2

Hence T=2(1/100)

T=1/50

Therefore

f=1/T

f=50 Hz

Hence Frequency is 50 Hz

Answer 2

AC time taken = 2 f

                        = 2 x 1/100

                         = 1/50 seconds

                         =50 hertz      

Hope it helps!