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What is the formula for calculating the voltage drop across the cable?In: Home Electricity |
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Answer
The formula for a simple DC voltage drop across a cable is:
VDrop = Vmeasured at the input of cable - Vmeasured at the output of cable
This formula may seem simplistic however keep in mind that the sensitivity, accuracy and resolution of measuring instrument instrument is what is really important.
If you know the DC current flowing through the cable and the impedance of the cable then you can use Ohm's law.
Vdrop = I R
where
Vdrop is the voltage drop across the cable in volts
I is the current flowing through the cable in amperes
R is the resistance of the cable in ohms.
First answer by Pkazsr. Last edit by ID1117326489. Question popularity: 14 [recommend question]
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