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13 March, 05:42

A circuit with a resistance of 25 ohms is carrying a current of 2

a. how much heat, in watts, is developed?

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  1. 13 March, 05:58
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    The heat developed can be calculated using the power rules as follows:

    P = I x V = I^2 x R

    First solution is to use the given values of I and R as follows:

    P = I^2 x R = (2) ^2 x 25 = 4 x 25 = 100 watt

    Second solution is to use ohm's law to get V, then substitute to get the power as follows:

    V = I x R = 2 x 25 = 50 volts

    Power = V x I = 50 x 2 = 100 watt
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