GATE EE 2016 Set 2 — Question 26
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Electromagnetic Fields → Electrostatics → Boundary Conditions (E)
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Question
A parallel plate capacitor filled with two dielectrics is shown in the figure below. If the electric field in the region A is , the electric field in the region B, in , is
Correct answer
(C) 4
Solution
In a parallel plate capacitor where dielectrics are placed side-by-side (parallel configuration), the potential difference across both dielectrics is the same. Since the distance between the plates is also the same for both regions, the electric field must be identical in both regions. Given , then .
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