D A magnetic needle of weight W has a magnetic moment m If

Last updated: 6/21/2023

D A magnetic needle of weight W has a magnetic moment m If the needle is to be maintained horizontal in northern hemisphere where should the point of support lie relative to its centre of gravity Vertical component of earth s magnetic field is V and horizontal component of earth s magnetic field is H a m V W Support 9 V X 21 C G W b Im V mW H