Question

Q11. For a short bar magnet, magnetic field intensity at a point lying at the same
distance from the center of magnetic dipole on the axial line of the magnet
Baxial)is *
O(a) equal to magnetic field intensity on the equatorial line (Bequatorial)
0 (b) twice the magnetic field intensity on the equatorial line (Bequatorial)
O (c) zero
0 (d) four times magnetic field intensity on the equatorial line (Bequatorial)
Q12. The alloys Alnico and steel are used for ma​

Answer 1

Answer:

b

Explanation:

as we know at equatorial line B=u/4pieM/r3 and at axial. it's twice.

hope it helps.