level: Electromotive force and internal resistance
Questions and Answers List
level questions: Electromotive force and internal resistance
| Question | Answer |
|---|---|
| What does 'ε' stand for? | emf |
| Define electromotive force | The energy transferred by a cell per coulomb of charge that passes through it |
| What is the total emf of a group of cells in series with one another with all chode ends facing the same way | Sum of all the emfs |
| What is the total emf of a group of cells in series with one another with all chode ends are facing differnt ways | total emf = net difference with current flowing in the direction of the direction of the net total Must have net difference and direction ^ |
| What is the total emf of identical cells in parallel? | total emf = emf of a single cell |
| What is terminal pd? | Pd across the cells |