The magnetic dipole moment of a short magnetic dipole at a distant point along the equator of magnet has a magnitude of 'X' in SI u'nits. If the distance between the point and the magnet is halved then the magnitude of dipole moment will be .

Options

A. 2X
B. `(1)/(2)x`
C. X
D. `(1)/(8)X`

Answer

C

Explanation

The magnetic dipole moment is the product of either of pole strenght and the megnetic length of dipole. Thu , it is independent of the distance of point at which it is measured . So it remains unchaged , if the distacne between point and the magnet is havled.