Question

Electric field lines never intersect each other.
(A) True
(B) False

Answer 1

Hint
Tangent at a point on the electric field line gives us the direction of the electric field at that point. Direction of the electric field at a point in space has a unique direction. Electric field lines are imaginary lines that show the direction of electric field at any point in space.

Complete step by step solution
Tangent at a point on the electric field line gives us the direction of the electric field at that point. If two electric lines intersect with other electric lines then there are two tangents at that point. And due to two different tangents there are two different directions of electric field at that point. It is not possible that there are two directions of electric field at the same point.
Hence, electric field lines never intersect each other is true and this is also a property of electric field lines.
So, the correct answer is option (A).

Note
The region around the electric charge in which the electric force act is called an electric field. If the magnitude of charge is large, then it may apply a strong force on other charged particles near it. The electric field at a point in space is represented by $E$. The SI unit of the electric field is newton per coulomb which is equal to volts per meter.
The electric field is represented by the imaginary line. The intensity of the electric field is directly proportional to the number of electric lines. For the positive charge, the line of force comes out of the charge and for the negative charge the line of force will move towards the charge.