A 0.50-μF capacitor is connected to a 400-V battery.What potential energy is stored in the capacitor? A) 0.020 J B) 0.040 J C) 1.0 × 10−⁴ J D) 1.2 × 10−¹² J

Question

Quizplus · Accepted Answer

The potential energy stored in a capacitor is given by the formula:

U = (1/2) * C * V^2

where U is the potential energy, C is the capacitance, and V is the voltage.

Substituting the given values, we get:

U = (1/2) * 0.50 * 10^-6 * (400)^2

U = 0.040 J

Therefore, the answer is B.

A 050-μF Capacitor Is Connected to a 400-V Battery