Question

The instantaneous current and voltage of an a.c. circuit are given

by i=10 sin 300 t A and V =200 sin 300 t V.​

Answer 1

Answer:

Explanation:

I=10 sin 300t A

V=200 sin 300t volt.

I'= 10A. (By comparing I=I'sinwt)

Similarly

V'=50 V

Irms=I'/√2=10/√2

Similarly,

Vrms=V'/√2 = 50/√2

P=Irms×Vrms×cos(theta)

P=10/√2×50/√2×cos0°

P=250 W