Question

The effective value of current in 50 cycle ac in circuit is 5 ampere what is the value of current at 1 by 300 seconds after it is zero

Answer 1

Answer:

given Irms=5.0amp

I0=2–√Ims

f=50cycles/sec,t=1300sec

I=I0sinwt

=2–√×50sin2π×50×1300

=2–√×50×sinπ3

=6.124amp