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=2cos (omegat-phi) ampere, the r.m.s. value of the current is

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

Select and write the most appropriate answer. The instantaneous current in an A.C. circuit is given by I = 2 sin (omegat +theta) ampere. The r.m.s. value of the current is

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

The instantaneous current from an a.c. source is I = 6 sin 314 t. What is the r.m.s. value of the current?

The instantaneous current from an a.c. source is given by I=5sim 314t . What is the r.m.s value of the current.