power and resistance
2008-12-04 11:29 pm
The units of power and resistance are energy over time. What is their relationship? Is resistance in other terms expressed as the power used up in a current?
回答 (1)
2008-12-05 1:34 am
✔ 最佳答案
E=PT,P=E/T.P=IV,P=I^2R,P=V^2/R
The relationship of power and resistance are P=I^2R and P=V^2/R.
If resistance is less,more current will arross the circuit.Hence,P=IV,the power will be higher since V is constant of the supply.
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