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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minPYQ_2018

PhysicsEasysingle choice

A steel wire of length $ℓ$ has a magnetic moment M. It is then bent into a semicircular arc. The new magnetic moment is

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Solution:

Let pole strength $= m$ So, $M = m ℓ$ When wire is in form of arc, then the distance between poles $= \frac{2 ℓ}{π}$ So, $M^{'} = \frac{m 2 ℓ}{π} = \frac{2 M}{π}$

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

⏱ 2mℹ️ Source: PYQ_2018

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