Question

VI
4. Solve the following problems.
i) What is the resistance of one of the rails of
a railway track 20 km long at 20° C? The
cross section area of rail is 25 cm and the
rail is made of steel having resistivity at
20° C as 6x10-8 S2 m.by log​

Answer 1

Answer:

See the above attachment

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Thank you

Answer 2

Answer:

See the above attachment

I hope it's helps u