A 5.5- $\mu$ F capacitor has 1.3 mJ of potential energy stored in it. The potential across the plates is
A) 22 V.
B) 15 V.
C) 11 V.
D) 7.1 V.

Question

Quizplus · Accepted Answer

The potential energy stored in a capacitor is given by the equation U = 1/2 CV^2, where U is the energy in joules, C is the capacitance in farads, and V is the potential difference in volts. Rearranging this equation to solve for V, we get V = sqrt(2U/C). Plugging in the given values, we get V = sqrt(2 * 1.3 mJ / 5.5 $\mu$F) = 22 V.

A 55- μ\muμ F Capacitor Has 1

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