Physics, asked by MalavBhabhor, 1 year ago

calculate the resistance of 1 kilometre long copper wire of radius 1 millimetre resistivity of copper is 1.72 into 10 raise to minus 8 ohm metre

Answers

Answered by muhammadayaz319
4

Answer:

resistance = 5.5 ohms

Explanation:

R=ρL/A

where ρ=1.72*10^-8

L=1000m

A=(Pi)*(0.001)^2

Put values to find R=5.5 ohms

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