Question

A 10 cm long bar magnet has a pole strength 10 A.m. Calculate the magnetic field at a point on the axis at a distance of 30 cm from the centre of the bar magnet

Answer 1

Hey there,

◆ Answer -

B = 6.66×10^-6 Wb/m^2

● Explaination -

Magnetic field at a point on the axis is calculated by -

B = 2kM/r^3

B = 2 × 9×10^-9 × 10 / 0.3^3

B = 6.66×10^-6 Wb/m^2

Therefore, magnetic field at a point on the axis is 6.66×10^-6 Wb/m^2.

Hope this helps you...