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ANTONII [103]
3 years ago
9

an electric device is plugged into a 110v wall socket. if the device consumes 500 w of power, what is the resistance of the devi

ce
Physics
1 answer:
andreev551 [17]3 years ago
4 0

Answer: R=24.2Ω

Explanation: <u>Power</u> is rate of work being done in an electric circuit. It relates to voltage, current and resistance through the following formulas:

P=V.i

P=R.i²

P=\frac{V^{2}}{R}

The resistance of the system is:

P=\frac{V^{2}}{R}

R=\frac{V^{2}}{P}

R=\frac{110^{2}}{500}

R = 24.2Ω

<u>For the device, resistance is 24.2Ω.</u>

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