We are aware that charged particles are surrounded by an electric field. The direction of the electric field that surrounds a charged particle is depicted by drawing lines with arrows for our convenience. A positively charged particle sends the electric field into a negatively charged particle.
An electric field line is an imaginary line or curve that is drawn from an electric field point in such a way that the electric field's direction at any point is tangent to it.
The tangent to field lines indicates the direction of an electric field, and electric field lines are the path that a unit positive charge takes when it is free in an electric field.Therefore, the tangent will always point in different directions, which is impossible if they form close loops.
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