Electrical Terms

4. The force (or pressure) that pushes electric current through a circuit, measured in volts (V).
7. Current Electric current that changes direction repeatedly (like household electricity).
8. The flow of electric charge (usually electrons) through a material.
9. A safety device that melts to break a circuit if the current is too high.
12. Circuit A circuit that is broken, so current cannot flow.
14. A device that opens or closes a circuit to control electricity flow.
17. A material that does not allow electricity to flow easily (like rubber, plastic, or glass).
18. A material that allows electricity to flow easily (like copper or aluminum).
19. Connecting an electrical circuit to the earth for safety.

1. A device that changes voltage levels in an AC circuit.
2. Any device that uses electricity (like a light bulb or motor).
3. How much a material resists the flow of electric current, measured in ohms (Ω).
5. Breaker A safety switch that automatically opens a circuit if there’s too much current.
6. The movement of electric charge through a circuit, measured in amperes (amps, A).
10. Circuit A complete path where current flows.
11. Current Electric current that flows in only one direction (like batteries).
13. (P) – The rate at which electricity is used or produced, measured in watts (W).
15. A closed path that allows current to flow.
16. Circuit An unintended path with very low resistance that can cause overheating or damage.