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A capacitor 8\(\mu\)F is charged to a potential difference of 100V. The energy stored by...

Physics
JAMB 1994
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 Answer: Option D
Explanation
Energy = \(\frac{1}{2}\)CV2

= \(\frac{1}{2}\) x 8 x 10-6 x (100)2

= 4 x 10-2J
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