Power in AC Circuits: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Power in AC Circuits. Understanding the underlying formula is key to arriving at the correct answer below:

The average power dissipated in an AC circuit is \(P_{\text{avg}} = V_{\text{rms}} I_{\text{rms}} cos\phi\). For a purely resistive circuit, the phase difference \(\phi = 0\), hence \(cos\phi = 1\) (maximum), resulting in maximum power dissipation.