A parallel plate capacitor filled with two dielectrics is shown in the figure below. If the electric field in the region A is 4 kV/cm, the electirc field in the region B, in kV/cm, is
A
1
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B
2
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C
4
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D
16
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Solution
The correct option is C 4 Ans : (c)
As voltage is same across both the regions and distance between two plates is also same, then electric field remains same throughout the both region. As we know, E=Vd= constant for both regions.