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