A bar magnet has a magnetic moment of 10 textA textm text2 . If its magnetic length is 5 textcm , Its pole strength is

Question

A bar magnet has a magnetic moment of 10 textA textm text2 . If its magnetic length is 5 textcm , Its pole strength is (A) 200 textA textm (B) 100 textA textm (C) 300 textA textm (D) 50 textA textm

Tardigrade Admin · Accepted Answer

m =(M/l)=(1 0/0 text. 0 5)=200Am

Q. A bar magnet has a magnetic moment of $10 A m^{2}$ . If its magnetic length is $5 cm$ , Its pole strength is

$200 A m$

$100 A m$

$300 A m$

$50 A m$

$m = \frac{M}{l} = \frac{10}{0 . 05} = 200 A m$

Q. A bar magnet has a magnetic moment of 10Am2 . If its magnetic length is 5cm , Its pole strength is

200Am

100Am

300Am

50Am