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=2cos (omegat-phi) ampere, the r.m.s. 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

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

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

If instantaneous current is given by i=4 cos(omega t + varphi) amperes, then the r.m.s. value of current is

If instantaneous current in a circuit is given by I=(2+3 sin omegat) A, then the effective value of resulting current in the circuit is

A current in circuit is given by i = 3 + 4 sin omegat . Then the effective value of current is :

The instantaneous value of an AC is given by I = 5 sin ( omega t + ph ) amp. The rms value of current is

The electric current in a circuit is given by I = 3 sin omegat + 4 cos omegat. The rms current is

In a circuit an a.c. current and a d, c. current are supplied together. The expression of the instantaneous current is given as i=3+6sinomegat Then the rms value of the current is –