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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic torque & energyEasy2 minPYQ_2019

PhysicsEasysingle choice

A semicircular arc of radius $r$ and a straight wire along the diameter, both are carrying same current $i$ . Find out magnetic force per unit length on the small element $P$ , which is at the centre of curvature.

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Answer:

Solution:

The magnetic force on a conductor, $F = B i ℓ$ Magnetic force per unit length, $\frac{F}{ℓ} = B i = (\frac{μ _{0} i ^{2}}{4 r})$

Stream:AIIMSSubject:PhysicsTopic:MagnetismSubtopic:Magnetic torque & energy

⏱ 2mℹ️ Source: PYQ_2019

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