science

what is the power dissipated by a 10 ohm resistor through which a 2 ampere current is flowing?

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  1. http://www.physicsclassroom.com/class/circuits/u9l3d.cfm

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  2. V = I x R
    P = V x I

    P = R x I^2

    P = 10 x 2^2 = 40 watts = 136.5 btu/hr

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