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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2001
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Q)

If specific resistance of a potentiometer wire is $10^{-7} \Omega m$ and current flow through it is 0.1 A, cross-sectional area of wire is $10^{-6} m^2$ then potential gradient will be :-


( A ) $10^{-8} V/m$
( B ) $10^{-6} V/m$
( C ) $10^{-4} V/m$
( D ) $10^{-2} V/m$

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