Physics

Problem

Capacitors of capacitances

C

and

2C

are connected in parallel to a battery of emf

V

. The total energy stored in the combination is

U

. A third capacitor of capacitance

X

is now connected in parallel to the same battery, increasing the total stored energy to

1.5\,U

. The value of

X

is a)

C

1.5\,C

0.5\,C

4.5\,C