Answer:
The maximum potential difference across capacitor is 20 V
Explanation:
Given;
maximum emf of the ac circuit, [tex]V_{max}[/tex] = 25 V
maximum potential difference across resistor, [tex]V_R[/tex] = 15 V
maximum potential difference across capacitor, [tex]V_C[/tex] = ?
Determine the maximum potential difference across capacitor using the equation below;
[tex]V_{max} = \sqrt{V_R^2 + V_C^2} \\\\25^2 = V_R^2 + V_C^2\\\\V_C^2 = 25^2 - V_R^2\\\\V_C^2 = 25^2 - 15^2\\\\V_C^2 = 400\\\\V_C = \sqrt{400} \\\\V_C = 20 \ V[/tex]
Therefore, the maximum potential difference across capacitor is 20 V
