Question on: JAMB Physics - 2017

From the diagram above, calculate the energy stored in the capacitor
A
4.0 x 10\(^{-2}\)J
B
4.0 x 10\(^{-4}\)J
C
8.0 x 10\(^{-4}\)J
D
8.0 x 10\(^{-2}\)J
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Correct Option: B

c = 8µF, v = 10v

Energy stored = (\frac{1}{2}) cv2

= (\frac{1}{2}) × (8 × 10− 6) × 102

= 4 × 10(^{-4})

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