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
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