Two long straight parallel conductors separated by a distance of $0.5\,m$ carry currents of $5\,A$ and $8\,A$ in the same direction. The force per unit length experienced by each other is

  • A

    $1.6 \times {10^{ - 5}}\,N$ (attractive)

  • B

    $1.6 \times {10^{ - 5}}\,N$ (repulsive)

  • C

    $16 \times {10^{ - 5}}\,N$ (attractive)

  • D

    $16 \times {10^{ - 5}}\,N$ (repulsive)

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