NEET2017PhysicsCapacitanceActual
Two condensers, one of capacity C and the other of capacity C 2 , are connected to a V -volt battery, as shown. The work done in charging fully both the condensers is
Options
- AC V^2
- B1 4 C V^2
- C3 4 C V^2
- D1 2 C V^2
Correct answer
C. 3 4 C V^2
Step-by-step solution
The two condensers in the circuit are in parallel order, hence C^ =C+ C 2 = 3 C 2 The work done in charging the equivalent capacitor is stored in the form of potential energy. Hence, W=U= 1 2 C^ V^2= 1 2 ( 3 C 2 ) V^2= 3 4 C V^2