CapacitanceHard

Question

As shown in fig. two identical capacitors are connected to a battery of V volts in parallel. When capacitors are fully charged their stored energy is U1. If the key K is opened and a material of dielectric constant ∈r = 3 is inserted in each capacitors their stored energy is now U2. Then will be:-
     

Options

A.3/5
B.5/3
C.4/3
D.5/4

Solution

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