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10 February, 10:59

A 0.44 A current is passing through a 124-Ω resistor. What is the power (in W) dissipated in the resistor? Do not include units with your answer.

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  1. 10 February, 11:04
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    24 W is the power dissipated in the resistor.

    Explanation:

    In this case, 0.44 A current is passed through a resistor of 124 ohm, then the power in that resistor will be found as product of voltage and current. Since, the voltage is not given and in its place the resistance is given, we have to write the formula for power in terms of voltage and current.

    Power = Voltage * Current

    As per Ohm's law, Voltage = Current * Resistance

    So power = I²R

    Power dissipated in resistor = (0.44*0.44) * 124 = 24 W

    So 24 W is the power dissipated in the resistor.
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