Question

Write SI unit and dimension of the magnetic moment?

Answer 1

Magnetic Moment:

1. The magnetic moment is the product of current and area.
2. $$\begin{gathered} Magneticmoment,M=current\times Area \\ =[Ampere]\times \left[m^2\right] \end{gathered}$$
3. The SI unit of magnetic moment is $\mathrm{A}{\mathrm{m}}^2$.
4. Where A is the ampere(SI unit of current), m is meter.
5. The dimension will be $[{\mathrm{M}}^0{\mathrm{L}}^2{\mathrm{T}}^0{\mathrm{A}}^{}]$.

Hence, the SI unit of magnetic moment is $\mathrm{A}{\mathrm{m}}^2$and dimension is ${\mathrm{L}}^2\mathrm{A}$.