A constant potential difference V V\,V is applied across a resistor of resistance RRR.
Which other physical quantity is needed to be able to determine the total charge Q Q\,Q that flows through the resistor?
the current III in the resistor
the electromotive force (e.m.f.) EEE of the power supply
the power PPP dissipated by the resistor
the time ttt for which the potential difference is applied
51 exam-style questions on CIE IGCSE Physics 4.2.2a Electric current, charge and measuring current. Each one has a worked solution and a mark scheme showing where the marks go.