Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsPotential & potential energyMedium2 minPYQ_2012

PhysicsMediumsingle choice

Consider a thin spherical shell of radius $R$ with centre at the origin, carrying uniform positive surface charge density. The variation of the magnitude of the electric field $∣ E (r) ∣$ and the electric potential $V (r)$ with the distance $r$ from the centre, is best represented by which graph?

Options:

Answer:

Solution:

For a thin uniformly positive charged spherical shell (i) Inside the shell at any point $E = O$ and $V = \frac{1}{4 π \in _{0}} \frac{q}{R} =$ constt. where $q =$ charge on sphere $R =$ Radius of sphere (ii) Outside the shell at any point at any distance $r$ from the centre $E \propto \frac{1}{r ^{2}}$ and $V \propto \frac{1}{r}$

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

⏱ 2mℹ️ Source: PYQ_2012

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