Dependence of electric field strength on the distance and its relation to the number of field lines
Answers
Answer:
An electric field can be used in the pictorial form to describe the overall intensity of the field around it. This pictorial representation is called the electric field lines. There are certain properties, rules, and applications of electric field lines. Electric Field Lines can be easily defined as a curve which shows the direction of an electric field when we draw a tangent at its point.
The concept of electric field was first proposed by Michael Faraday, in the 19th century. Faraday always thought of electric field lines as ones which can be used to describe and interpret the invisible electric field. Instead of using complex vector diagram each time, electric field lines can be used to describe the electric field around a system of charges in an easier way.
The strength of electric fields is usually directly proportional to the lengths of electric field lines. Also, since the electric field is inversely proportional to the square of the distance, the electric field strength decreases, as we move away from the charge. The direction of arrows of field lines depicts the direction of the electric field, which is pointing outwards in case of positive charge and pointing inwards in case of a negative charge.
Further, the magnitude of an electric field is well described by the density of charges. The lines closer to the charge represent a strong electric field and the lines away from charge correspond to the weak electric field. This is because the strength of the electric field decreases as we move away from the charge.
Answer:
Electric Field Lines. ... The strength of electric fields is usually directly proportional to the lengths of electric field lines. Also, since the electric field is inversely proportional to the square of the distance, the electric field strength decreases, as we move away from the charge.