Question

in AC circuit the current and voltage are given by i = 5 cos wt, and V=200 sin wt respectively. Power loss in the circuit is-

Answer 1

power loss is zero.. cause phase diff. betⁿ voltage and current is of -π/2 i.e. the circuit is either pure L or pure C. . P=½i°V°cos∅ . cosπ/2=0