Magnetism and Matter Important Questions for CBSE Class 12 Physics Magnetic Dipole and Magnetic Field Lines 1.The magnetic dipole moment of a magnetic dipole is given by M = mx 21 where, m is pole strength and 21 is dipole length directed from The SI unit of magnetic dipole moment is A-m2 or J/T. It is a vector quantity and its direction is from South pole to North … [Read more...]