For a simple circuit with a battery supplying a voltage V to a capacitor, let us assume that the charge on the capacitor is Q. Now, the work done by the battery or the energy supplied is given by the relation:
W=QV
But the energy stored in the capacitor is given by:
U=12QV
The value of Q as well as that of V should be the same in both the equations.
Now my question is, where is the other half of the energy that the battery supplied?
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