If a magnet is cut into four equal parts such | vedclass

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

Question

(B) When a magnet is cut along its length,the pole strength remains the same,but when it is cut perpendicular to its length,the pole strength is halve

Vedclass · Accepted Answer

$m / 2$

Vedclass · Answer

(B) When a magnet is cut along its length,the pole strength remains the same,but when it is cut perpendicular to its length,the pole strength is halved.In this case,the magnet is cut into four equal parts by cutting it once along its length (parallel to the axis) and once perpendicular to its length.$1$. Cutting along the length (parallel to the axis) divides the pole strength $m$ into $m/2$ and $m/2$.$2$. Cutting perpendicular to the length divides the magnet into two parts,but the pole strength of each cross-section remains $m/2$.Therefore,for each of the four resulting parts,the pole strength $m^{\prime}$ is $m/2$.

If a magnet is cut into four equal parts such that their lengths and breadths are equal,what is the pole strength of each part?

Similar Questions

Use:
$(i)$ the Ampere's law for $\vec{H}$ and
$(ii)$ continuity of lines of $\vec{B}$,to conclude that inside a bar magnet,
$(a)$ lines of $\vec{H}$ run from the $N$ pole to $S$ pole,while
$(b)$ lines of $\vec{B}$ must run from the $S$ pole to $N$ pole.

Write the analogy between electrostatics and magnetism.

$A$ magnetised wire of magnetic moment $M$ is bent into an arc of a circle subtending an angle of $60^{\circ}$ at the center. The new magnetic moment is:

Define the pole strength of a magnet and write its $SI$ unit.

$A$ 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

Vedclass Test Series

Exam Paper Generator

Online Exam Module