What is meant by electric field lines?

What is electric field lines and its properties?

An electric field line is an imaginary line or curve drawn from a point of an electric field such that tangent to it (at any point) gives the direction of the electric field at that point. Properties : 1. Electric field lines starting from positive charge and terminating at a negative charge.

What are electric field lines of force?

The electric lines of force represent the field of a positive electric charge in space. It consists of a family of straight lines that radiate uniformly in all directions from where the charge originates. A second positive charge placed in the field that will travel radially away from the first charge.

What are 3 characteristics of an electric field?

Properties of an Electric Field

  • Field lines never intersect each other.
  • They are perpendicular to the surface charge.
  • The field is strong when the lines are close together, and it is weak when the field lines move apart from each other.
  • The number of field lines is directly proportional to the magnitude of the charge.

What is electric field lines short answer?

An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point.

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Can electric field be negative?

Electric field is not negative. It is a vector and thus has negative and positive directions. An electron being negatively charged experiences a force against the direction of the field. For a positive charge, the force is along the field.

Why can’t electric field lines cross?

Electric field lines cannot cross. … This is because they are, by definition, a line of constant potential. The equipotential at a given point in space can only have a single value. If lines for two different values of the potential were to cross, then they would no longer represent equipotential lines.

What is the formula of electric field lines?

E = F q test = k | Q | r 2 . This equation gives the magnitude of the electric field created by a point charge Q. … The length of the arrows should be proportional to the strength of the electric field. If you join together these arrows, you obtain lines.