Question

A semicircular magnet of moment m is being straight and then the new magnetic moment is

Answer 1

Answer:

moment is equal to intial and final velocity.

Answer 2

Answer:

If the semicircular magnet of magnet movement M is made into straight line then its magnetic movement becomes $\frac{\pi}{2} M$.

Explanation:

Given:

A semi circular magnet of magnetic = M.

Magnetic moment= Pole strength * Distance between the poles

CASE 1: For the semi circular Magnet,

Consider

$Radius = r. \\Distance between two poles= The diameter = 2 r. \\Then Magnetic moment M = m\times(2 r)$

CASE 2: If it is made into straight line, then

• The distance =  $\pi\times\mathram r$ ( perimeter of semi circle)

• $M_{2} =m\times (\pi\times\mathram r)$

• Divide M₁ and M₂. We get,

• $\mathrm{M}_2=\frac{\pi}{2} \mathrm{M} 1$

If the semicircular magnet of magnet movement M is made into straight line then its magnetic movement becomes $\frac{\pi}{2} M$.