| A | B |
|---|
| cell | a device which makes the current travel around the circuit; converts chemical potential energy to electrical energy by a chemical reaction (between electrodes and electrolyte) |
| battery | two or more cells working together |
| switch | a device used to open and close a circuit |
| ammeter | a device that measures electrical current |
| Amp (A) | the unit of measurement for electric current |
| fuse | a safety device that melts and breaks the circuit if too much current flows through it |
| circuit diagram | a drawing of an electrical circuit using symbols |
| component | a part in an electrical circuit, e.g. bulb, wire, switch |
| *electrolyte | liquid or paste that conducts electricity |
| *wet-cell battery | battery that contains an electrolyte liquid |
| *dry-cell battery | battery that contains an electrolyte paste |
