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Electricity Circuits
Electricity and Circuits vocab
Term | Definition |
---|---|
Circuit | Complete path around which current can flow. Has the following required components: voltage source, path, and load. |
Series Circuit | A circuit in which electrons have only one path back to the source. There are no branches. |
Parallel Circuit | A circuit that has branches and junctions. |
Current | The rate of flow of electrons. |
Resistance | A device that restricts the flow of electrons in a circuit. |
Ohm | Unit for electrical resistance. |
Ampere | Unit for electrical current. Equivalent to Coulombs/s. |
Schematic Diagram | A circuit drawing that uses recognizable symbols to represent circuit components. |
Watt | Unit for power. Equivalent to Joule/s. |
Voltage | Potential Difference in a circuit also known as the electromotive force (emf). |
Voltmeter | Instrument used to measure voltage in a circuit. |
Ammeter | Instrument used to measure current in a circuit. |
Direct Current | A continuous electric current that flows in one direction only. |
Alternating Current | An electric current that changes direction at regular intervals. |