There is no couple acting when two bar magnet | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) couple is defined as two equal and opposite forces acting along different lines of action,which produces a torque. For two bar magnets placed coax

Vedclass · Accepted Answer

The forces act along the same line

Vedclass · Answer

(D) couple is defined as two equal and opposite forces acting along different lines of action,which produces a torque. For two bar magnets placed coaxially,the magnetic force between them acts along the axis connecting their centers. Since the forces on the poles of the magnets act along the same line (the common axis),the perpendicular distance between the lines of action of the forces is zero. Therefore,the torque $\vec{	au} = \vec{r} 	imes \vec{F} = 0$. Thus,no couple acts on the magnets.

There is no couple acting when two bar magnets are placed coaxially separated by a distance because

Similar Questions

What is the magnetism analog of charge in electricity?

$A$ thin rod of length $L$ has magnetic moment $M$ when magnetised. If the rod is bent into a semicircular arc,what is the magnetic moment in the new shape?

$A$ straight steel wire of length $\ell$ has a magnetic moment $M$. It is bent into an $L$-shape as shown in the figure. The new magnetic moment is

Magnetic lines of force due to a bar magnet do not intersect because

$A$ bar magnet $AB$ is cut into two equal parts as shown in the figure. One part is kept over the other so that the pole $C_{2}$ is above $C_{1}$. If $M$ is the magnetic moment of the original magnet,the magnetic moment of the combination so formed is

Vedclass Test Series

Exam Paper Generator

Online Exam Module