Question

Derive expression for electric field intensity
due to point charge in a material medium.​

Answer 1

Answer:

The electric field Intensity at a point is the force experienced by a unit positive charge placed at that point. Electric Field Intensity is a vector quantity. ... Formula: Electric Field = F/q. Unit of E is NC-1 or Vm-1.

Answer 2

In any material electric field intensity due to point charge will be equal to $E=\frac{1}{4\pi K\epsilon _0}\frac{Q}{r^2}$

Explanation:

Let the magnitude of point charge is Q

And we have to find the electric field intensity at a distance r from the point charge

Let the dielectric constant of the material is K

So electric field intensity due to point charge is given by

$E=\frac{1}{4\pi K\epsilon _0}\frac{Q}{r^2}$

Electric field intensity is dependent on the dielectric constant of the medium.

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