Current Electricity: JEE Main 2004 Physics question

JEE Main 2004 · Annual, Paper 1 · Q6508

JEE Main 2004Annual, Paper 1PhysicsMediumCurrent Electricity150× since 2002

A material

'B'

has twice the specific resistance of

'A'.

A circular wire made of

'B'

has twice the diameter of a wire made of

'A'

. Then for the two wires to have the same resistance, the ratio

{l \over B}/{l \over A}

of their respective lengths must be

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JEE Main 2004 Current Electricity Question with Solution (Annual Paper 1, Q6508) | JEE Arc