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If the radius of each of the plates is increased by a factor of root2 and their distance of separation decreased to half of its initial value, calculate the ratio of the capacitance in the two cases. |
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Answer» 4:1 Explanation:Initially,Let the radius be r and DISTANCE between the circular plates be d. Capacitance(C) = When radius is increased by factor √2 and distancs is DECREASED to 1/2. HENCE, Hence, C'/C = 4C/C = 4:1 Required RATIO of the capacitane in the TWO cases is 4 : 1. |
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