Question

Arectangular bar magnet of area 20 cm2 has
ability to produce a magnetic field of 2.5 T at a
point 30 cm away from its mid point on axial line.
If its is assumed that dipole is surrounded by a
spherical region in space, then net magnetic flux
passes through the sphere is:​

Answer 1

Explanation:

Magnetic moment =5A- m2

distance between poles =20cm=0.2m

Magnetic moment = pole ×distance of b/w poles

5=Poles strength ×0.2

pole strength =5×10/0.2=25