A short bar magnet is placed in the magnetic meridian of the earth with north pole pointing north. Neutral points are found at a distance of 30 cm from the magnet on the East - West line, drawn through the middle point of the magnet. The magnetic moment of the magnet in Am2 is close to :
Given in SI units and
BH= Horizontal component of earth’s magnetic field = 3.6 10-5 Tesla.)
9.7
4.9
19.4
14.6
As we learnt in
On Equatorial Position -
- wherein
At 30cm from the magnet on its equotorial plane
Option 1)
9.7
Correct Option
Option 2)
4.9
Incorrect Option
Option 3)
19.4
Incorrect Option
Option 4)
14.6
Incorrect Option
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