Two short magnets of equal dipole moments M are fastened perpendicularly at their centers (figure). The magnitude of the magnetic field at a distance d from the centre on the bisector of the right angle is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Resultant magnetic moment at point O is
Suppose a dipole of magnetic moment 
is placed at point O along line Od. The point d is on the axial line of this dipole, hence magnetic field at point d,
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