Question

A bar magnet has dipole moment of 5 A-m².
Calculate the magnetic induction produced by
it at a point in air at a distance of 50 cm from
either pole.
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Answer 1

Answer:

given = dipole moment =5Am²

           P= 0.5 M = 1/2m

           distance = 50cm m=10

to find = magnetic induction =B ?

solution ,

magnetic induction = μ₀4п m/r²

                             B = 10⁻⁷ X 10 /(1)²

                             B = 4X10⁻⁶ Wb/m²

therefore magnetic induction is  4X10⁻⁶ Wb/m².