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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2020

PhysicsEasysingle choice

A thin plastic ring of radius $R$ carries a charge $q$ uniformly spread over the entire ring. The ring is rotating with angular velocity $ω$ about its axis. The magnetic induction at the centre of the ring is

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Answer:

Solution:

Due to charge $q$ moving on circular path

$B_{c e n t r e} = \frac{µ_{0} I}{2 R} = \frac{µ_{0} q f}{2 R} = \frac{µ_{0} q ω}{4 π R}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Biot-savart's & Ampere's Circuital law

⏱ 2mℹ️ Source: PYQ_2020

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