Four statements concerning potential difference or electromotive force are given. 1. It is the conversion of electrical energy into other forms. 2. It is the conversion of other forms of energy into electrical energy. 3. It is the energy per unit charge needed to move charge all the way round a circuit. 4. It is the work done per unit charge as charge moves from one point to another. Which statements refer to potential difference, and which refer to electromotive force?
Physics 9702 · AS & A Level · Potential difference and power