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Electrostatics: Electric Potential

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A conducting sphere of radius r1 is suspended by a perfectly insulating thread inside and concentric with a larger conducting sphere of radius r2 and the space between the spheres is a vacuum. A charge q is deposited on the outer sphere. What is the potential difference (as would be measured by a voltmeter) between the two spheres?

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Step by step solution provided for problems involving electrostatics electric potential. Step by step calculations are provided.

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Please refer to the attachment.

Charge +q
r
Gaussian surface
r1

r2

As the spheres are conducting, the charge +q given to the bigger sphere will distribute it self uniformly on its outer surface.

Let us consider a spherical Gaussian surface of radius r as shown in ...

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