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Question
What meaning would you give to the capacitance of a single conductor?
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Solution
The capacitance of a single conductor is considered as a parallel plate capacitor with one of its two plates at infinity.
RELATED QUESTIONS
Two parallel-plate capacitors X and Y have the same area of plates and same separation between them. X has air between the plates, while Y contains a dielectric medium of εr = 4.

(i) Calculate capacitance of each capacitor if the equivalent capacitance of the combination is 4 μF.
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(iii) Estimate the ratio of electrostatic energies stored in X and Y.
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