Electrical Circuits
| Description: | electrical circuit and components |
| Category: | Physics |
| Created by: | hamizah on 2008-04-15 |
| Question | Answer |
| The longer wire the more/less resistance, the lamp will shine more/less brightly ? | more, less |
| Fuses and circuit breakers prevent circuits carrying too much electricity. Explain how. | The fuse device contains wire which melts, and breaks the circuit when the current is too high.A circuit breaker has a switch which opens and breaks the circuit when the current is too high, and can easily be close again. |
| Materials which allow electricity to flow through them are called __________. Materials which do not allow electricity to flow through them are called ___________. | conductors insulators |
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