Question

A 10 uF capacitor is charges by a battery of emf 100
volt. What is the energy drawn from the battery and the
energy stored in the capacitor ?

Answer 1

Answer:

C=10μF=10×10

−6

F,V=200V

Energy stored =

2

1

CV

2

=

2

1

×10×10

−6

×200×200

=2×10

−1

=0.2J

Energy drawn from the battery =CV

2

=10×10

−6

×(200)

2

=0.4J