JEE Advanced Physics 2014 Paper 1 #8 (#25) Capacitors with Dielectric 

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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. The total capacitance of the capacitor is C while that of the portion with the dielectric in between is C1. When the capacitor is charged, the plate area covered by the dielectric gets charge Q1 and the rest of the area gets charged Q2. The electric field in the dielectric is E1, and that in the other portion is E2. Choose the correct option(s) ignoring edge effects.
A) E1/E2=1
B) E1/E2=1/K
C) Q1/Q2=3/K
D) C/C1=(2+K)/K
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