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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsPotential & potential energyEasy2 minPYQ_2020

PhysicsEasysingle choice

A small conducting sphere of radius $r$ is lying concentrically inside a bigger hollow conducting sphere of radius $R$ . The bigger and smaller spheres are insulated from each other and are charged to $Q$ and $q (Q > q)$ respectively. The potential difference between the sphere will be

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Answer:

Solution:

First we calculate total potential on sphere A and B

$V_{A} = \frac{k q}{r} + \frac{k Q}{R}$

$V_{B} = \frac{k q}{R} + \frac{k Q}{R}$

$∴ V_{A} - V_{B} = \frac{k q}{r} - \frac{k q}{R}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:ElectrostaticsSubtopic:Potential & potential energy

⏱ 2mℹ️ Source: PYQ_2020

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