1.

A cylindrical conductor of length l and uniform area of cross section A has resistance R. Another conductor of length 2.5l and resistance 0.5R of the same material has an area of cross section

Answer»

5A
2.5A
0.5A
`1/5A`

SOLUTION :Here `R=(RHO L)/A and 0.5R=(rho(2.5l))/A. IMPLIES A.=5A`


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