The instantaneous current in an AC circuit is l = `sqrt 2`sin(50 t + `pi` / 4 ) . The rms value of current is

The instantaneous current in a circuit is given by I = 4 cos (omegat + theta) amp. The rms value of current is

If the instantaneous current in a circuit is given by I = 20 cos (omega t + phi) A , the rms value of the current is

The instantaneous current in a circuit is, I=sin(omegat+phi) ampere. What is the r.m.s., value of the current?

If the instantaneous current in a circuit is given by I=2 cos (omegat+phi) amperes, the rms value of the current is

The instantaneous value of current in an ac circuit is I = 2 sin (100pit + pi//3) A . The current at the beginning (t = 0) will be –

The instantaneous current in an A.C. circuit is given by I= 2 sin (omega t+theta) ampere. The r.m.s. value of the current is

The instantaneous value of current in an A.C. circuit is I=2 sin (100 pi t +pi //3)A .The current will be maximum for the first time at