Saved Bookmarks
| 1. |
Two magnetic poles, one of which is three times as strong as the other, exert on each other, a force equal to 3 xx 10^(-3)N when separated by a distance of 10 cm. Find the strength of each pole. |
|
Answer» Solution :Pole strengths , `m_1 = m and m_2 =3` DISTANCE between POLES , d=10 cm = 0.1 m Force on each poles , `F=3 xx 10^(-3)N` Force between the poles `, F=(mu_0)/(4pi)(m_1m_2)/(d^(2))` `implies 3 xx 10^(-3) = (4pi xx 10^(-7))/(4 PI ) xx (m.3m)/((0.1)^(2))` `implies 3m^(2) = 300 (or) m =10` `:.` The pole strengths are 10 A-m and 30A-m. |
|