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The diameter of each of plate of a paral...

The diameter of each of plate of a parallel plate air capacitor is 0.06 m. What should be the distance between its plates, so that its capacitance becomes equal to that of a sphere of diameter 0.1 m?

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`4.5 mm`
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CHHAYA PUBLICATION-CAPACITANCE AND CAPACITOR-PROBLEM SET - I
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