Solveeit Logo

Question

Physics Question on Alternating current

In an A.C. circuit, the current flowing is I=5sin(100tπ2)ampereI=5sin(100 t - \frac{π}{2}) ampere and the potential difference is V=200sin(100t)voltsV = 200 sin (100 t) volts. The power consumption is equal to

A

20 W

B

0 W

C

1000W

D

40 W.

Answer

0 W

Explanation

Solution

Power, P=Ir.m.s×Vr.m.s×cosϕ
Here, the phase difference between voltage and current is π/2π/2.
Hence, P=Ir.m.s×Vr.m.s×cos π/2π/2=0