In an A.C circuit in 1 sec, current reduces to 0 value 100 times. Find the frequency of an A.C current.
Dear student,
Since AC has sinusoidal wave and it starts at 0 and the end of one cycle is also the beginning of the next cycle so we can see it becomes 0 two times in one cycle.
So here it is mentioned current reduces to 0 value 100 times, so it means that there will be 50 cycles as each cycle has 2 zeroes.
So the number of cycles in one sec is 50.
Hence frequency =50Hz
Regards
Since AC has sinusoidal wave and it starts at 0 and the end of one cycle is also the beginning of the next cycle so we can see it becomes 0 two times in one cycle.
So here it is mentioned current reduces to 0 value 100 times, so it means that there will be 50 cycles as each cycle has 2 zeroes.
So the number of cycles in one sec is 50.
Hence frequency =50Hz
Regards