[" Find the root mean square current "],[" of on cycle in an A.C circuit in "],[" which instantaneous current is "],[" given by equation "],[i=sqrt(31)+6sin omega t-8cos(omega t]

Current in an ac circuit is given by I= 3 sin omega t + 4 cos omega t, then

Calculate the root mean square value of current if the instantaneous current in a circuit connected across an AC source is given by I = 5 sin 31.4 t.

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

An AC current is given as i=(2cos omega t+3sin omega t) A.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 –

In an A.C. Circuit, the current is given by I=6 sin(200 pi t+(pi)/6)A The initial value of the current is

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

If an alternating current is given by i = a sin ( omega t) + b cos ( omega t), then RMS value of current is :-

The potential difference V across and the current I flowing through an instrument in an AC circuit are given by: V=5 cos omega t volt I=2 sin omega t Amp.

The potential differences V and the current i flowing through an instrument in an AC circuit of frequency f are given by V=5 cos omega t and I=2 sin omega t amperes (where omega=2 pi f ). The power dissipated in the instrument is