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NEET 2010 (AIPMT, Mains) · Dielectrics

Dielectrics question from NEET 2010 (AIPMT, Mains)

Q110NEET 2010 · AIPMT · MAINSEasy

Dielectrics

Two parallel metal plates having charges +Q and $-$ Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

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Answer: (c)

The plates are isolated, so charge $Q$ stays the same.
In a dielectric the field becomes $E = \frac{E_0}{K}$ ; kerosene has $K > 1$ .
So the field decreases: answer (c).

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