Question on: WAEC Physics - 1992
Calculate the energy stored in 20μF capacitor if the potential difference between the plates is 40 V.
A
3.2 x10-2J
B
1.6x102J
C
8.0x10-4J
D
4.0x10-4J
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Correct Option: B
E = 1/2cv2 = 1/2 x 10 x 10-6 x 402 = 1.6 x 10-2J
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