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| The flow of charged particles. |
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| A group of several voltaic or galvanic cells connected together to convert chemical energy to electric energy. |
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| A solar cell that changes light energy into electric energy. |
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| The base SI unit of current; one coulomb per second. |
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| The ratio of the voltage across a device to the current through it. |
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| Device with a specific resistance. |
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| A circuit with several current paths, whose total current equals the sum of the currents in its branches. |
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| A circuit in which current passes through each device, one after another. |
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| Energy unit; the amount of energy equal to 1000 watts delivered continuously for one hour. |
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| In a series circuit, the sum of individual resistances. |
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| A short piece of metal that will melt, or blow, if too large a current passes through it and that acts as a safety device by stopping current to the entire circuit. |
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| An automatic switch that opens, stopping all current, when the circuit is overloaded. |
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| Low-resistance connection between two points. |
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| A device that measures current. |
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| A device that measures voltage. |
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