I’m trying to calculate the average power dissipated as the heat in the resistor.
A 12 V amplitude sinusoidal signal is applied across a 500 ohm resistor.
I have determined the current amplitude to be 0.024 A and the root mean square to be 16.97 mA.
I use P = I x V = 0.024 x 12 = 0.288 W
Where P is the power, I is the current and V is the voltage.
Is this correct ?