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Question

Question: In an ac circuit with voltage V and current I, the power dissipated is...

In an ac circuit with voltage V and current I, the power dissipated is

A

VI

B

C

12VI\frac { 1 } { \sqrt { 2 } } V I

D

Depends on the phase between V and I

Answer

Depends on the phase between V and I

Explanation

Solution

Pcosϕ\therefore P \propto \cos \phi