Two capacitors having capacities C(1) an...

Two capacitors having capacities `C_(1) and C_(2)` are charged to voltages `V_(1) and V_(2)` respectively. There will be no exchange of energy in connecting them in parallel, if

`C_(1)=C_(2)`

`C_(1)V_(1)=C_(2)V_(2)`

`V_(1)=V_(2)`

`C_(1)/V_(1)=C_(2)/V_(2)`

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