Question

A parallel plate capacitor has a dielectric slab of dielectric constant K between its plates that covers 1/3 of the area of its plates, as shown in the figure. The total capacitance of the capacitor is C while that of the portion with dielectric in between is C. When the capacitor is charged, the plate area covered by the dielectric gets charge Q and the rest of the area gets charge Q. The electric field in the dielectric is E and that in the other portion is E. Choose the correct option/options, ignoring edge effects :

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This question has multiple correct options
A

B

C

D

Hard
JEE Advanced

Solution

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Correct options are A) and D)

As
(both parts have common potential difference)
Assume be the capacitance without dielectric for whole capacitor.




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