Question

Define ‘electric line of force’ and give its two important properties.

Answer 1

 An electric field line is a path, straight or curved, such that tangent to it at any point gives the direction of electric field intensity at that point. Properties of field lines: (i) Tangent to the electric field line at any point gives the direction of electric intensity at that point. (ii) No two electric lines of force can intersect each other.

Answer 2

Answer:

Properties of electric field lines or electric line of force -

1- they originate from positive charge and terminate at negative charge.

2- they do not form closed loop as they do not return back.

3- they do not terminate in space.

4- electric field lines never intersect each other.

5- electric field lines are perpendicular to the surface of the charge.

6-the magnitude of charge and the number of field lines both are proportional to each other.

7- the start point of the field line is at the positive charge and end at the negative charge.

8- electric field lines or electric line of force are pictorial way of representing electric field around a configuration of charge.