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    MynameisBob's Avatar
    MynameisBob Posts: 4, Reputation: 1
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    #1

    Mar 9, 2009, 01:06 AM
    Potential difference
    Calculate the potential difference across each resistor in parallel. 12v dc supply, 10 ohms (R) 5 ohms(R)?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Mar 9, 2009, 05:23 AM

    When resistors are in series, their resistance can be added directly.

    When resistors are in parallel, they add as follows





    After you figure out the resistance, it's Ohm's law all the way. The potential drop across each resistor will be identical since they're in parallel.
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