First slide

Capacitance

Question

The figure shows on air corad capacitor connected to a battery. Electric field at a point between the plates is found to be E_0.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

Moderate

A

E < E₀
B

E > E₀
C

E = E₀
D

Sufficient

Solution

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 = $\frac{Potential difference}{Plate saparation},$ option (3) is correct.

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