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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsPotential & potential energyMedium2 minPYQ_2021

PhysicsMediumsingle choice

Two charged spherical conductors of radius $R_{1}$ and $R_{2}$ are connected by a wire. Then the ratio of surface charge densities of the spheres $(σ_{1} / σ_{2})$ is :NEET 2021

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Answer:

Solution:

$V_{1} = V_{2}$

$\frac{k q_{1}}{R_{1}} = \frac{k q_{2}}{R_{2}}$

$\frac{σ_{1} 4 π {(R_{1})}^{2}}{R_{1}} = \frac{σ_{2} 4 π {(R_{2})}^{2}}{R_{2}}$

$\frac{σ_{1}}{σ_{2}} = \frac{R_{2}}{R_{1}}$

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

⏱ 2mℹ️ Source: PYQ_2021

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