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    cindybabexx's Avatar
    cindybabexx Posts: 1, Reputation: 1
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    #1

    Aug 19, 2009, 05:00 PM
    Calculations in science
    How do u calculate power in circuit
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Aug 20, 2009, 01:06 AM

    In an electric circuit? Well;

    [math[ Power = Current \times Potential\, Difference[/math]



    You you have only one, that is current or voltage (potential difference), then use Ohm's law, V = IR to give;





    I = current
    V =Potential difference / Voltage
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