Question 1.7: (a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not? (b) Explain why two field lines never cross each other at any point?
Class 12 - Physics - Electric Charges And Fields Electric Charges And Fields Page-46
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a.) => The field line cannot have sudden breaks because we know that the charge which is moving is continuous , that’s why field lines cannot have sudden breaks .
b.) => 2 Electric lines of forces can never intersect each other ,, because if they intersect then at the point of intersection will have 2 tangents that is it will have 2 possible directions of electric field at a point , which is impossible.
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a.) => The field line cannot have sudden breaks because we know that the charge which is moving is continuous , that’s why field lines cannot have sudden breaks .
b.) => 2 Electric lines of forces can never intersect each other ,, because if they intersect then at the point of intersection will have 2 tangents that is it will have 2 possible directions of electric field at a point , which is impossible.
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(a) An Electrostatic field line is a continuous curve , it means line of forces don't break their paths. Also we know, electrostatic field lines are imaginary lines which give the direction of Electrostatic force act on a charge particle.
we know, charge particle never jumps one position to other position in electric field . It means , imaginary line of force are not breakable.
So, we get conclusion :- because moving test charge ( unit charge ) never jumps from one position to other position , an electrostatic field line can't have sudden breaks.
(b) if two lines cross each other , then we will obtain two tangents in two different directions of electric field at a point, which is impossible . That's why two field lnes never cross each other at any point . For better understanding , I attached figure .
we know, charge particle never jumps one position to other position in electric field . It means , imaginary line of force are not breakable.
So, we get conclusion :- because moving test charge ( unit charge ) never jumps from one position to other position , an electrostatic field line can't have sudden breaks.
(b) if two lines cross each other , then we will obtain two tangents in two different directions of electric field at a point, which is impossible . That's why two field lnes never cross each other at any point . For better understanding , I attached figure .
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