Question

Problem 24 1 A parallel-plate capacitor has square plates that have edge length equal to 3.80x102 cm and are separated by 1.00 mm. It is connected to a battery and is charged to 12.0 V. 1) How much energy is stored in the capacitor? (Express your answer to three significant figures.) Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.

Answer 1

here,

edge length, a = 380 cm = 3.8 m

1) energy stored in the capacitor = 0.50 * C * V^2

energy stored in the capacitor = 0.50 * 8.854 *10^-12 * 3.8^2/(0.001) * 12^2

energy stored in the capacitor = 9.2 *10^-6 J = 9.2 uJ

the energy stored in the capacitor is 9.2 uJ