The instantaneous voltage through a device of impendance 20 `Omega` is V=`80sin100pit`. The effective value of the current is

A current l=3+8 sin 100t is passing through a resistor of resistance 10 Omega .The effective value of current is

The instantaneous value of an alternating current is given by i=50 sin(100 pit) . It will achieve a value of 25 A after a time interval of

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

In an a.c. circuit the instantaneous current is given by I = sqrt2 sin 100 pit ampere. The effective value of a.c. in amepres 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 –

If V=V_(m)sin omegat represents instantaneous voltage connected across a resistor of resistance 'R' then write the expression for the instantaneous current in it.

A direct current of 5 amp is superimposed on an alternating current I=10 sin omega t flowing through a wire. The effective value of the resulting current will be: