I came across a question in my Physics Paper "What is the work done by a battery in charging a capacitor" (Assume circuit has no resistance). This is what i thought... The Energy in the field between the capacitor plates is 0.5CV^2 where C=capacitance and V=Battery EMF.So the ans should be 0.5CV^2. BUT the actual solution in paper was... Net Work done=Net Charge * Voltage W=QV W=CV^2 . What is the correct ans?