Exam

NEET

Year

2013

Subject

Physics

Chapter

Magnetic Effects of Current

NEET 2013 · Physics · Magnetic Effects of Current

A circular A B C D carrying a current ' i ' is placed in a uniform...

A circular $A B C D$ carrying a current ' $i$ ' is placed in a uniform magnetic field, if the magnetic force on the segment $A B$ is $\vec{F}$, the force on the remaining segment BCDA is:

Step-by-step solution

We know that net magnetic force on a current loop in a uniform magnetic field is zero. $$\begin{aligned} & \therefore \quad F_{A B}+F_{C B A D}=0 \\ & \therefore \quad \vec{F}_{C B A D}=-\vec{F}_{A B}=-\vec{F} \\ & \end{aligned}$$