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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minPYQ_2021

PhysicsEasysingle choice

The magnetic field at the centre of a current carrying circular coil of area ' $A$ ' is ' $B$ '. The magnetic moment of the coil is ( $μ_{0} =$ permeability of free space)

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Answer:

Solution:

$A = π R^{2} \Rightarrow R = \frac{A}{π} B = \frac{μ _{0} I}{2 R}$ Magnetic Moment, $M = I A = \frac{2 A BR}{μ _{0}} = \frac{2 BA ^{3/2}}{μ _{0} π}$

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

⏱ 2mℹ️ Source: PYQ_2021

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