Question

Calculate the instantaneous power and the average power across a load given:

V(t) = 12 cos(4t 80°) Volts
I(t) = 1.4 sin(4t + 40°) Amps

Answer 1

The power output of the source is 7.20 W.

Step-by-step explanation:

The easiest way to calculate power output of the source is to use P = IV, where V is the source voltage. This gives P =(0.600 A)(12.0 V)= 7.20 W.