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A magnetometer needle aligned with the horizontal component of Earth’s magnetic field deflects by an angle 45 when placed on the axial line of a bar magnet of length 5cm . If the distance between the centre of the bar magnet abd the magnetometer needle is 100cm , the momnet of the bar magnet is ? bh- 0.36 * 10^-4 T

A magnetometer needle aligned with the horizontal component of  Earth’s magnetic field deflects by an angle 45 when placed
on the axial line of a bar magnet of length 5cm . If the distance between the centre of the bar magnet abd the magnetometer needle is 100cm , the momnet of the bar magnet is ? bh- 0.36 * 10^-4 T

Grade:12

1 Answers

Piyush
askIITians Faculty 112 Points
5 years ago
Just find out the magnitude of the magnetic field on the axial line and equate it with BH.

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