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Physics
A 5.0 μF capacitor is charged to a potential difference of 800 V and discharged through a conductor. The energy given to the conductor during the discharge is
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Q. A $ 5.0\, μF $ capacitor is charged to a potential difference of $ 800\, V $ and discharged through a conductor. The energy given to the conductor during the discharge is
UPSEE
UPSEE 2009
A
$ 1.6 × 10^{−2}\, J $
B
3.2 J
C
1.6 J
D
4.2 J
Solution:
Energy given to conductor $=\frac{1}{2} \,C V^{2}$
$=\frac{1}{2} \times 5 \times 10^{-6} \times(800)^{2}$
$=1.6 \,J$