A 4-μF capacitor is attached to a 10-V power supply.How much energy is stored in the capacitor? A) 0.40 × 10−³ J B) 4 × 10−³ J C) 1.60 × 10−⁴ J D) 4 × 10−⁴ J E) 1.50 × 10−³ J

Question

Quizplus · Accepted Answer

The energy stored in a capacitor is given by the equation E = 1/2 CV^2, where C is the capacitance and V is the voltage. Plugging in the given values, we get E = 1/2 (4 μF) (10 V)^2 = 0.40 × 10−3 J.

A 4-μF Capacitor Is Attached to a 10-V Power Supply