At some location on earth the horizontal component of earth

Last updated: 6/9/2023

At some location on earth the horizontal component of earth s magnetic field is 18 10 6 T At this location magnetic needle of length 0 12 m and pole strength 1 8 Am is suspended from its mid point using a thread it makes 45 angle with horizontal in equilibrium To keep this needle horizontal the vertical force that should be applied at one of its ends is 3 6 10 N 1 8 x 10 5 N 1 3 x 10 5 N 6 5 10 5 N