defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Moving Charges and Magnetism Magnetic Field on the Axis of a Circular Current Loop
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
\(\dfrac{\mu_0}{4\pi}\dfrac{2i_1i_2}{r}\) N/m
4
\(\dfrac{2i_1i_2}{r}\) N/m