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A spherical capacitor has an inner spher...

A spherical capacitor has an inner sphere of radius 12cm and an outer sphere of radius 13cm. The outer sphere is earthed and the inner sphere is given a charge of `2.5 muc`. The space between the concentric spheres is filled with a liquid of dielectric constant 32. a. Determine the capacitance of the capacitor. b.What is the potential of the inner sphere? c. Compare the capacitance of this capacitor with that of an isolated sphere of radius 12cm. Explain why the latter is much smaller.

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