Yahoo Answers: Answers and Comments for A 2.7 KΩ resistor dissipates 50 mW of power. What is the voltage across the resistor ? [Physics]
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From ?
enCA
Mon, 31 Jan 2011 20:14:50 +0000
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Yahoo Answers: Answers and Comments for A 2.7 KΩ resistor dissipates 50 mW of power. What is the voltage across the resistor ? [Physics]
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From Coo g: Voltage= Square Root of ( Power X Resistance)
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Tue, 01 Feb 2011 04:20:35 +0000
Voltage= Square Root of ( Power X Resistance)

From TBT: Power = VI
and V =IR => I = V/R
Power ...
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Tue, 01 Feb 2011 05:36:55 +0000
Power = VI
and V =IR => I = V/R
Power = V * V/ R
50 * 10^3 = V^2 / 2.7*10^3
V^2 = 135
V= 11.62 volt answer
Assuming DC circuit.

From KMcG: Ok Ohm's law current is equal to voltage t...
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Tue, 01 Feb 2011 04:19:32 +0000
Ok Ohm's law current is equal to voltage times resistance.
And Power (watts) is equal to voltage times current.
There that's every thing you need to know to figure it out.