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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsElectric Field & ForceEasy2 minPYQ_2012

PhysicsEasysingle choice

Charge $q$ is uniformly spread on a thin ring of radius $R$ . The ring rotates about its axis with a uniform frequency $f Hz$ . The magnitude of magnetic induction at the centre of the ring is

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Solution:

We knowmagnetic field $β = \frac{μ _{0} i}{2 R} q = it \Rightarrow i = \frac{q}{t} = qf ∴ β = \frac{μ _{0} qf}{2 R}$

Stream:VITEEESubject:PhysicsTopic:ElectrostaticsSubtopic:Electric Field & Force

⏱ 2mℹ️ Source: PYQ_2012

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