Q. If same current $I$ passing through two parallel wires separated by a distance $b,$ then force per unit length will be
A) $\frac{\mu_{0}}{4\pi}\frac{2I^{2}}{b}$
B) $\frac{\mu_{0}I}{4\pi b^{2}}$
C) $\frac{\mu_{0}I^{2}}{4\pi b^{2}}$
D) $\frac{\mu_{0}I^{2}}{4\pi b}$
Explanation
The correct answer is Option A: $\frac{\mu_{0}}{4\pi}\frac{2I^{2}}{b}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.