Question

Two conducting charged spheres of radii $R_1$ and $R_2$ having charges $q_1$ and $q_2$ respectively are connected by a conducting wire. Then there is:

• A. An increase in energy of the system
• B. No change in energy of the system
• C. Always decrease in energy
• D. A decrease in energy of the system unless $q_1{R}_2=q_2{R}_1$

Answer 1

The correct option is D A decrease in energy of the system unless $q_1{R}_2=q_2{R}_1$

In redistribution of charge there is always loss of energy, unless their potentials are same or $q_1{R}_2=q_2{R}_1$