Four statements concerning either 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 transferred per unit charge to drive charge around a complete circuit. 4. It is the work done per unit charge by charge moving from one point to another. Which statements relate to potential difference and which relate to electromotive force?
- Apotential difference: 1 and 3; electromotive force: 2 and 4
- Bpotential difference: 1 and 4; electromotive force: 2 and 3
- Cpotential difference: 2 and 3; electromotive force: 1 and 4
- Dpotential difference: 2 and 4; electromotive force: 1 and 3