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VI 4. Solve the following problems.i) What is the resistance of one of the rails ofa railway track 20 km long at 20° C? Thecross section area of rail is 25 cm and therail is made of steel having resistivity at20° C as 6x10-8 S2 m.by log |
Answer» SEE the above ATTACHMENTI HOPE it's HELPS uThank you |
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