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12 Cards in this Set
- Front
- Back
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electricity
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A form of energy used in telegraphy from the 1840s on and for lighting, industrial motors, and railroads beginning in the 1880s.
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electrical conductor
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a material in which charges can move freely
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electrical insulator
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a material in which charges cannot move freely
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electric current
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The continuous flow of electric charges through a material
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resistance
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A material's opposition to the flow of electric current.
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electric circuit
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a complete, unbroken path through which electric charges can flow
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schematic diagram
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a graphical representation of a circuit that uses lines to represent wires and different symbols to represent components
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series circuit
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A circuit in which all parts are connected end to end to provide a single path of current.
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parallel circuit
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A closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit.
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potential difference (voltage)
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The amount of electric energy available to move electric current
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circuit breaker
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A reusable safety switch that breaks the circuit when the current becomes too high
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ohm's law
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V=IR The relationship of voltage, current, and resistance
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