Electrostatics Question 112
A capacitor is used to store 24 watt-hour of energy at 1200 volt. What should be the capacitance of the capacitor [Kerala (Engg.) 2001]
Options:
A) $ 120\mu F$
B) $ 120\mu F $
C) $ 24\mu F $
D) $ 24\mu F$
Show Answer
Answer:
Correct Answer: A
Solution:
$ U=\frac{1}{2}CV^{2} $
So $ 24\times 60\times 60=\frac{1}{2}C{{(120)}^{2}} $
therefore C=120 µF
BETA
