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| A device that can produce an electric current as a result of chemical change in it. |
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| A system that connects electrical devices so that they will operate. |
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| A drawing that uses symbols to show how the parts of an electric circuit are connected. |
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| A device used to indicate a closed path across two points in a circuit. If the path between the two test points is closed, the bulb of the circuit tester will light. |
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A material through which electricity can pass. |
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A device that allows electric current to flow through it in only one direction. |
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A flow of electric charge through something. |
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| A fine wire that becomes hot and produces light when an electric current passes through it. |
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A material through which electricity will not pass. |
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A circuit where electricity travels in more than one path around the circuit (dimmer light, uses less energy). |
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A circuit where electricity has one only one path to travel (brighter light, uses more energy). |
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A device used to turn the electric current (or light) on or off. |
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| Figuring out what is wrong with something by process of elimination. |
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| A metal strand used to connect electrical devices in a circuit. |
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