Write difference b/w electric and magnetic lines of force
Answers
The direction of the electric field is always directed in the direction that a positive test charge would be pushed or pulled if placed in the space surrounding the source charge. Since electric field is a vector quantity, it can be represented by a vector arrow. The arrows point in the direction of the electric field and their length is proportional to the strength of the electric field at that location. The lengths of the arrows are longer when closer to the source charge and shorter when further from the source charge.
A pictorial representation of magnetic field lines is very useful in visualizing the strength and direction of the magnetic field . The direction of magnetic field lines is defined to be the direction in which the north end of a compass needle points.