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Moving Charges and Magnetism — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
Two statements are given$-$one labelled Assertion $(A)$ and the other labelled Reason $(R).$ Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion $(A):$ Magnetic moment is measured in joule/ tesla or amp $m^2.$
Reason $(R):$ Joule/ tesla is equivalent to amp $m^2.$
✓

Answer

Magnetlcmoment $=\frac{\text{joule}}{\text{tesla}}=\frac{\text{w}}{\text{B}}=\frac{\text{W}}{\frac{\text{F}}{\text{qu}}}$$=\frac{\text{Wqv}}{\text{F}}=\frac{[\text{ML}^2\text{T}^{-2}][\text{AT}][\text{LT}]^{-1}}{[\text{MLT}^{-2}]}$
$=\text{AL}^2=\text{amp m}^2$

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