Question

Two identical metal plates, separated by a distance d form a parallel plate capacitor. A metal sheet of thickness of the same area as that of either plate, is inserted between the plates. The ratio of the capacitance's after the insertion of the sheet to that before insertion is:

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A

B

2 :1

C

1:1

D

Medium

Solution

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Correct option is
B

2 :1

The effective capacitance of above capacitance is series combination ofΒ  and

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