A magnetized straight wire has magnetic moment M. it is bent into semi circular arc its magnetic moment becomes

Question

A magnetized straight wire has magnetic moment M. it is bent into semi circular arc its magnetic moment becomes (A) (M π/2) (B) (M/3) (C) (2 π/3) (D) (2 M/π)

Tardigrade Admin · Accepted Answer

M1=(2 M sin ((θ/2))/θ) M1=(2 M sin ((π/2))/π) M1=(2 M/π)

Q. A magnetized straight wire has magnetic moment $M$ . it is bent into semi circular arc its magnetic moment becomes

$\frac{M π}{2}$

$\frac{M}{3}$

$\frac{2 π}{3}$

$\frac{2 M}{π}$

$M^{1} = \frac{2 M s i n ( \frac{θ}{2} )}{θ}$
$M^{1} = \frac{2 M s i n ( \frac{π}{2} )}{π}$
$M^{1} = \frac{2 M}{π}$

Q. A magnetized straight wire has magnetic moment M. it is bent into semi circular arc its magnetic moment becomes

2Mπ​

3M​

32π​

π2M​