Question

Find the resistance of 800 m of copper cable of cross-sectional area 24m2. Take the resistivity of copper as 0.05μΩm

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

1.66 ohm

Explanation:

R=rho. L/A

R=0.05×800/24

R=5×800/24×100

R=4000/2400

R=5/3

R=1.66 ohm