The radius of the circular plates of a p...

The radius of the circular plates of a parallel plate condenser is `'r'`. Air is there as the dielectric. The distance between the plates if its capacitance is equal to that of an isolated sphere of radius `r'` is.

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The radius of the circular plates of a parallel plate condenser is `'r'`. Air is there as the dielectric. The distance between the plates if its capacitance is equal to that of an isolated sphere of radius `r'` is.

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