A closed loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments $P S, S R$ and $R Q$ are $F_1, F_2$ and $F_3$ respectively and are in the plane of the paper and along the directions shown, the directions shown, the force on the segment $Q P$ is

Question

A closed loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments

P S, S R

and

R Q

are

F_1, F_2

and

F_3

respectively and are in the plane of the paper and along the directions shown, the directions shown, the force on the segment

Q P

is

Quantrex Academy · Accepted Answer

Correct answer: B. (F_3-F_1)^2+F_2^2

aligned & F_4 θ=F_2 & F_4 θ=(F_3-F_1) & F_4= (F_3-F_1)^2+F_2^2 aligned ) For a closed loop there is no translation.

A closed loop PQRS carrying a current is placed in a uniform...