A capacitor 8 mu F is charged to a potential di... - JAMB Physics 1994 Question
A capacitor 8(\mu)F is charged to a potential difference of 100V. The energy stored by the capacitor is
A
1.0 x 104J
B
8.0 x 10J
C
1.25 x 10J
D
4.0 x 10-2J
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Correct Option: D
Energy = (\frac{1}{2})CV2
= (\frac{1}{2}) x 8 x 10-6 x (100)2
= 4 x 10-2J
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