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What allows a current to pass?

Updated: 8/10/2023
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9y ago

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The basic requirements are a power source, a closed circuit and some form of resistance on it to work.

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14y ago
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9y ago

If you mean an electrical current, that will pass through any conductor. That's a substance that has free charge carriers - for example, free electrons (free to move around, that is).

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Q: What allows a current to pass?
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