pwr_equation

pwr_equation - The Power Equation Electric power is the...

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1 The Power Equation Electric power is the rate at which energy is converted from electrical engery to some other form such as heat or mechanical energy. When charge moves through a reisistor it loses potential energy. That energy is converted to heat. Power dissipated (as heat) by a component in a DC circuit is given by the product of the voltage across the component and the current through the component: For example, in the circuit below, how much power is dissipated in the 1.5 ohm resistor? Solving for current first: I = V/R = 1.5/1.5 = 1 therefore, P = 1.5 * 1 = 1.5 Watts alternatively, P = I 2 * R, so P = 1 * 1* 1.5 = 1.5 Watts
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This note was uploaded on 04/17/2010 for the course ECE 112 taught by Professor Traylor during the Winter '09 term at Oregon State.

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pwr_equation - The Power Equation Electric power is the...

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