Question

electric field lines and its properties...?

Answer 1

Definition of Electric Field Lines :

Electric field lines map pictorially, the electric field around a configuration of electric charges. The concept was developed by Faraday and is a non-mathematical way of visualization electric fields around charged configurations. In other words, the electric field line are the path straight or curved, such that tangent to it at any point gives the direction of electric field intensity at that point. In fact, a unit positive charge actually moves in the electric field along the path.

Properties of Electric Field Lines:

The properties of electric field lines are as follows:

(i) Electric field lines are discontinuous curves. They starts from a positively charged body and end at a negatively charged body. No electric lines of force exist inside the charged body. Thus, electrostatic field lines do not form any closed loops.

(ii) Tangent to the electric field line at any point gives the direction of the electric intensity at that point.

(iii) No two electric lines of force can intersect each other. This is because at the point of intersection, there are two directions of the electric field, which is not possible.

(iv) The electric field lines are always normal to the surface of a conductor. There is no component of the electric filed intensity parallel to the surface of the conductor.

(v) The electric field lines contract longitudinally, because of attraction between unlike charges.

(vi) The electric field lines exert a lateral pressure because of repulsion between like charges.

(vii) The magnitude of the electric field is represented by the density of the field lines. Denser be the electric lines of force indicates the strong electric field and vice versa.



Image of electric lines of force for isolated positive and ngative charge

In brief, electric field lines have many properties that are important to define it properly. Electric field lines are discontinuous lines and have either straight or curved path.

Answer 2

HEY MATE HERE IS YOUR ANSWER:-

It is a path straight or curved such that tangent to the path at any point gives us the direction of electric intensity at the point.

PROPERTIES:-

Field lines never intersect each other.

They are perpendicular to the surface charge.

The field is strong when the lines are close together, and it is weak when the field linesmove apart from each other.

The number of field lines is directly proportional to the magnitude of the charge


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