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Yamin is running 50 feet of No. 14 wire (with a cross section of 4,110 cmils) to a load that draws current of 11 amps. What approximate voltage drop will he experience? A. 1.8 V B. 2.8 V C. 3.5 V D. 5.9 V

Respuesta :

Resistance per 1000 feet for gauge 14 wire is given as

R = 2.525 ohm

now if wire is of length 50 feet only then the resistance is given as

[tex]R = \frac{2.525}{1000}\times 50[/tex]

[tex]R = 0.126 ohm[/tex]

now if 11 A current flows through the wire then the voltage drop is given by ohm's law

[tex]V = iR[/tex]

[tex]V = 11 \times 0.126[/tex]

[tex]V = 1.4 Volts[/tex]

so most appropriate answer in given options is

A. 1.8 Volts

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