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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  1998
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Q)

Two long parallel wires are at a distance of 1m. If both of them carry one ampere of current in same direction, then the force of attraction on unit length of the wires will be :


( A ) $4 \times 10^ {–7} N/m$
( B ) $10^ {–7} N/m$
( C ) $8 \times 10^ {–7} N/m$
( D ) $2 \times 10^ {–7} N/m$

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