Question

define magnetic moment write its SI unit and dimensional formula

Answer 1

The magnetic moment of a magnet is a quantity that determines the torque it will experience in an externalmagnetic field. A loop of electric current, a bar magnet, an electron, a molecule, and a planet all have magneticmoments.

ITS SI UNIT IS -- 'In the metre–kilogram– second–ampere and SI systems, the specific unit for dipole moment is ampere-square metre. In the centimetre–gram–second electromagnetic system, the unit is the erg (unit of energy) per gauss (unit of magnetic flux density). One thousand ergs per gauss equal one ampere-square metre.'

Answer 2

Answer:

“Magnetic Moment exists described as magnetic strength and direction of a magnet or different object that creates a magnetic field.

Explanation:

“Magnetic Moment exists described as magnetic strength and direction of a magnet or different object that creates a magnetic field.”

The magnetic moment exists as a vector quantity. The objects tend to place themselves in such a manner that the magnetic moment vector becomes parallel to the magnetic field lines.

While solving questions connected to finding a dimensional formula,

think about writing the conveyed physical quantity in terms of other physical quantities whose dimensional formula is known.

The magnitude of magnetic moment for a closed-loop is proportional to:

Current$\left[M^{0} L^{0} T^{0} A^{1}\right]$

Area of the loop $\left[M^{0} L^{2} T^{0} A^{0}\right]$

Therefore, the dimensional formula for the magnetic moment

$=\left[M^{0} L^{2} T^{0} A^{1}\right]$.

The unit for a magnetic moment in International System of Units (SI) base units exists $A. \mathrm{m}^{2}$,

where A stands for ampere (SI base unit of current) and

$\mathrm{m}$ stands meter (SI base unit of distance).

This unit contains equivalents in other SI derived units including ${ }^{[3][4]}$

$\mathrm{A} \cdot \mathrm{m}^{2}=\frac{\mathrm{N} \cdot \mathrm{m}}{\mathrm{T}}=\frac{\mathrm{J}}{\mathrm{T}}$.

#SPJ3