A short bar magnet has a magnetic moment of `0.65 J T^(-1)`, then the magnitude and direction of the magnetic field produced by the magnet at a distance 8 cm from the centre of magnet on the axis is

Options

A. `2.5 xx 10^(-4)T`, along NS direction
B. `2.5 xx 10^(-4)T`,along SN direction
C. `4.5 xx 10^(-4)T,` along NS direction
D. `4.5 xx 10^(-4)T,` along SN direction

Answer

B

Explanation

`2.5 xx 10^(-4)T`,along SN direction