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    Resistance and Ohm's Law: How long is the copper wire the current is flowing through?

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    A current of 0.76 A flows through a copper wire 0.44 mm in diameter when it is connected to a potential difference of 15 V. How long is the wire?

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    Solution Preview

    The resistance of a wire is found to be proportional to the length of the wire and inversely proportional to its ...

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    The methodology to solve how long is the copper wire is explained in good detail.