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Q.

A 12 pF capacitor is connected to a 50V battery. How much electrostatic energy is stored in the capacitor

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a

1.5×10−8 J

b

2.5×10−7 J

c

3.5×10−5 J

d

4.5×10−2 J

answer is A.

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Detailed Solution

U=12CV2=12×12×10−12×(50)2=1.5×10−8J
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A 12 pF capacitor is connected to a 50V battery. How much electrostatic energy is stored in the capacitor