Question

In an

a.c. circuit, the current is i = 5 sin(100 – π/2) amp and the

a.c. potential is v = 200 sin(100t) volt. then the power consumption is

Answer 1

Answer:

As phase difference between current and voltage is π/2.

so,phi=90°

so, in formula of power loss(cos phi= 90,whose value is zero)

Means power loss is zero watt.