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The figure shows on air corad capacitor connected to a battery. Electric field at a point between the plates is found to be E0. Now a dielectric slab is introduced in the space between the plates and electric field at a point in side the dielectric slab is found to be E. Then 

a
E < E0
b
E > E0
c
E = E0
d
Sufficient

detailed solution

Correct option is C

Information is not given to find the relation between E and E0.Potential differences between the plates without dielectric and with dielectric are the same. since electric field = Potential differencePlate saparation, option (3) is correct.

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