A straight wire carrying a current ${i_1}\,amp$ runs along the axis of a circular current ${i_2}\,amp$. Then the force of interaction between the two current carrying conductors is
  • A$\infty $
  • B
    Zero
  • C$\frac{{{\mu _0}}}{{4\pi }}\frac{{2{i_1}{i_2}}}{r}\,N/m$
  • D$\frac{{2{i_1}{i_2}}}{r}\,N/m$
Easy
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