Define 'electric line of force' and give its two important properties ?

An electric line of force is an imaginary continuous line or curve drawn in an electric field such that tangent to it at any point gives the direction of the electric force at that point.The direction of a line of force is the direction along which a small free positive charge will move along the line. It is always directed from positive charge to negative charge.

Some of its important characteristics are:

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Apoorva Arora

IIT Roorkee

askIITians Faculty

Some of its important characteristics are:

 

1)Lines of force originate from a positive charge and terminate to a negative charge.

2)The tangent to the line of force indicates the direction of the electric field and electric force.

3)Electric lines of force are always normal to the surface of charged body.

4)Electric lines of force contract longitudinally.

5)They and expand laterally.

6)Two electric lines of force cannot intersect each other.

7)Two electric lines of force proceeding in the same direction repel each other.

8)Two electric lines of force proceeding in the opposite direction attract each other.

9)The lines of force are imaginary but the field it represents as real.

10)There are no lines of force inside the conductor.

 

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Kushagra