Moving Charges and Magnetism

Question: 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

1) $\infty $

2) Zero

3) $\frac{{{\mu _0}}}{{4\pi }}\frac{{2{i_1}{i_2}}}{r}N/m$

4) $\frac{{2{i_1}{i_2}}}{r}N/m$

Solution:

Explanation: No Explanation

Force and Torque on a Current Carrying Conductor

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