copper wire has a diameter of 0.5mm and the resistivity is 1.6x10^-6 ohm cm.how much of the wire would be required to make 10 ohm coil

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copper wire has a diameter of 0.5mm and the resistivity is 1.6x10^-6 ohm cm.how much of the wire would be required to make 10 ohm coil

Asked by rusuishika | 15 Jun, 2020, 04:39: PM

Expert Answer

R equals fraction numerator rho l over denominator A end fraction R equals fraction numerator rho l cross times 4 over denominator pi d squared end fraction 10 equals fraction numerator 1.6 cross times 10 to the power of negative 6 end exponent cross times l cross times 4 over denominator 3.14 cross times open parentheses 0.5 cross times 10 to the power of negative 3 end exponent close parentheses squared end fraction l equals fraction numerator 3.14 cross times open parentheses 0.5 cross times 10 to the power of negative 3 end exponent close parentheses squared cross times 10 over denominator 1.6 cross times 10 to the power of negative 6 end exponent cross times 4 end fraction l equals 1.22 m

Answered by Utkarsh Lokhande | 15 Jun, 2020, 06:34: PM

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