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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minPYQ_2025

PhysicsEasysingle choice

A 2 amp current is flowing through two different small circular copper coils having radii ratio $1 : 2$ . The ratio of their respective magnetic moments will beNEET 2025

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Solution:

$Magnetic moment M = I (A) M = I (π r^{2}) \frac{M _{1}}{M _{2}} = \frac{I π r _{1}^{2}}{I π r _{2}^{2}} = (\frac{r _{1}}{r _{2}})^{2} = (\frac{1}{2})^{2} \frac{M _{1}}{M _{2}} = \frac{1}{4}$

Stream:NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Dipole & Moment

⏱ 2mℹ️ Source: PYQ_2025

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