The frequency of A.C. is 50 Hz. How many times the current becomes zero in one second?

An alternating current is given by I=100 sin(5 pi t) . How many times will be current become zero in one second?

An a.c. voltage is represented by E = 220 sqrt2 cos (8 pi) t . How many times will the current become zero in 1 sec ?

An ac voltage is represented by E=220 sqrt(2) cos (50 pi) t How many times will the current become zero in 1 s?

The frequency of sinusoidal A.C. voltage is 50 Hz. How many times does have voltage become zero in 5s ?

The phase difference between current and voltage in an AC circuit is (pi)/(4) radian, If the frequency of AC is 50 Hz, then the phase difference is equivalent to the time difference:-

The phase difference between current and vottage in an AC circuit is (pi)/(4) radian. If the frequency of AC is 50 Hz, then the phase diiference is equivalent to the time difference of