What Is the Resistance of a Device Using 3 Amps and 120 Volts?

Thread starter preciousk72
Start date Feb 26, 2009
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Resistance

AI Thread Summary

To find the resistance of a device using 3 amps and 120 volts, the formula R = V/I is applied, resulting in R = 120/3. The calculated resistance is 40, but clarification is needed on the unit of measurement. The unit of resistance is ohms, confirming that the answer is 40 ohms. The solution is correct, providing a clear understanding of how to calculate resistance in electrical circuits.

Feb 26, 2009

preciousk72

Homework Statement

If a device uses 3 ampere and a 120 Volt, what is the resistance of the material?

Homework Equations

I think it's R=120/3

The Attempt at a Solution

My answer is 40 but I don't know 40 what? I don't know if the answer is right.

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Feb 26, 2009

rl.bhat

Homework Helper

Your answer is right. Unit of resistance is ohm.

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