Question

Two identical capacitors are charged to different potentials, then they are connected to each other in such a way that sum of charges of plates having same polarity remain constant. Mark out the correct statement –

• A. Sum of charges of plates having negative polarity remain constant
• B. Mean of individual final potentials is different from mean of individual initial potentials
• C. Total energy stored in two capacitors in final state may be equal to that in initial state
• D. Heat dissipation in the circuit can be zero

Answer 1

Answer: (A)

Sum of charges of plates having negative polarity remain constant

Answer 2

Common potential =.

Since C₁ = C₂ \ V_c =. Hence +ve plate of both are connected and –ve plates of both are connected, so sum of charge on –ve plate will remain constant.