Question

Define electric line of force give four properties of the line

Answer 1

Electric line of force may be defined as the curve along which a positive charge would tend to move when free to do so in an electric field and the tangent to it gives the direction of electric field.

Properties:

1) They are continuous curves without any breaks.

2) They do not intersect.

3) They are always normal to the surface of the conductor

4) They start at positive charges and end at neative loops.

Answer 2

$\Large\underline\mathfrak{Question}$

What is meant by electric lines of force. ?

Give their four properties.

$\rule{200}{4}$

$\bold{\boxed{\large{\boxed{\orange{\small{\boxed{\large{\red{\bold{\:ANSWER}}}}}}}}}}$

$\rule{200}{4}$

$\Large\bold\star\underline{\underline\textbf{Electric lines of force\:}}$

→ We may define electric line of force as a path

(straight or curved) such that, tangent to this path at any point gives us the direction of electric field intensity at that point.

In fact, it is the path along which a unit positive charge actually moves in the electric field, if free to do so.

$\rule{200}{4}$

$\Large\bold\star\underline{\underline\textbf{Properties\:}}$

» Electric lines of force are discontinuous curves.

» They start from a positively charged body and end at a negatively charged body.

» Tangent to the line of force at any point gives direction of electric field intensity at that point.

» No two electric lines of force can intersect each other.

» The electric lines of force are always normal to the surface of the conductor, both while starting or ending on the conductor.

» The electric lines of force exert lateral pressure. This explains the repulsion between like charges.

» The electric lines of force contract longitudinally. This explains the attraction between like charges.

» Crowding of electric lines of force represents stronger electric field and vice-versa.

» Electric lines of force are imaginary and do not exist in reality.

» The number of electric lines of force per unit area is directly proportional to strength of electric field.

» Electric lines of force can pass through insulator but cannot pass through conductor.

Hope it helped u.

$\huge\bold{\red{\ddot{\smile}}}$