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    Humpalumpa's Avatar
    Humpalumpa Posts: 2, Reputation: 1
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    #1

    Mar 23, 2010, 12:14 PM
    Measuring Elctric
    If you drop a spanner and it fell on a connection to a battery why would you burn your hand when you went to lift it
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Mar 23, 2010, 12:44 PM

    Because the spanner (wrench in the USA) got hot from the heat generated by the resistance and the current flow that went through it.

    Same principle electric heaters use.
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