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MOVING CHARGES AND MAGNETISM — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMOVING CHARGES AND MAGNETISM2 Marks
Question
What is magnetic dipole moment? Write its Sl unit and dimensional formula.
✓

Answer

→The product of the current flowing in the coil and its area vector is called the magnetic dipole moment of the coil.
→Let I be the current passing through the coil and area A , then its magnetic dipole moment $\vec{m}=I \vec{A}$
→Suppose there are N turns in the coil and the current passing through each turn is I, then the magnetic dipole moment of the coil,
$\vec{m}= NI \overrightarrow{ A }$
→The magnetic dipole moment is vector quantity and its direction is in the direction of area vector. →The SI unit of dipole moment is $Am ^2$ and its dimensional formula is $M ^0 L^2 T^0 A^1$.

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