Two thin, long, parallel wires, separated by a distance ‘$d$’ carry a current of ‘$i$’ in the same direction. They will

  • [AIEEE 2005]
  • A

    Attract each other with a force of ${\mu _0}{i^2}/(2\pi {d^2})$

  • B

    Repel each other with a force of ${\mu _0}{i^2}/(2\pi {d^2})$

  • C

    Attract each other with a force of ${\mu _0}{i^2}/(2\pi d)$

  • D

    Repel each other with a force of ${\mu _0}{i^2}/(2\pi d)$

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  • [AIIMS 2015]

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