1.

The surface charge density of a thick metal plate is sigma the electric field near the surface is

Answer»

Answer:

Explanation:

According to gauss theorem

E= q/ε

Here q is the charge of the conductor

now, σ=q/ds

      q=σds

HENCE, E.dscosθ = σds/ε

As the unit VECTOR is NORMAL to to the surface in the upward DIRECTION. Hence the angle between the electric field and area vector is 0

E.ds = σds/ε

E=σ/ε



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