(i) Define electric intensity. (ii) Derive an expression for electr...

Question

(i) Define electric intensity. (ii) Derive an expression for electric intensity at a point situated on the axis of an electric dipole.

Accepted Answer

(i) Electric Intensity (Electric Field):

Definition:
Electric intensity at a point is defined as the force experienced per unit positive test charge placed at that point.

Formula: E = F/q₀

SI Unit: N/C or V/m

Nature: Vector quantity (direction same as force on positive charge)

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