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ELECTRIC FIELD LINES:

Electric field lines are straight or curved imaginary lines, if a tangent is drawn then it gives the direction of electric field intensity at that point.
This represents the electric field intensity in a pictorial method.
Field lines start from a positive charge & ends on a negative charge.

PROPERTIES:
1. Electric field lines are imaginary lines.
2. The electric field lines starts from a positive charge & end on a negative charge.
3. If a tangent is drawn at any point on the electric field lines gives the direction of field intensity at that point.
4. They do not form closed loops.
5. They are taken to be continuous lines.
6. Two electric field lines never intersect each other. If they intersect, then at the point of intersection there will be two different directions of electric field which is not possible.
7. Electric field lines contract lengthwise to represents attraction between unlike charges.
8. Electric field lines exert lateral pressure on each other to represent repulsion between like charges.
9. Electric field lines are perpendicular to the surface of a charged conductor.
10. They do not pass through a conductor.
11. Field lines can pass through dielectric.
12. Lines are closer together where the field is stronger.
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