Two conducting spheres of radii $R_1$ and $R_2$ are charged with charges $Q_1$ and $Q_2$ respectively. On bringing them in contact there is
Two conducting spheres of radii $R_1$ and $R_2$ are charged with charges $Q_1$ and $Q_2$ respectively. On bringing them in contact there is
- A
always a decrease in energy of the system
- B
an increase in the energy of the system if $Q_1R_2 \neq Q_2R_1$
- C
no change in the energy of the system
- D
a decrease in energy of the system if $Q_1R_2 \neq Q_2R_1$
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