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WAEC - Physics (1992 - No. 48)

Calculate the energy stored in 20μF capacitor if the potential difference between the plates is 40 V.
3.2 x10-2J
1.6x102J
8.0x10-4J
4.0x10-4J
2.0x10-4J

ব্যাখ্যা

E = 1/2cv2 = 1/2 x 10 x 10-6 x 402 = 1.6 x 10-2J

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