What is electric field lines and its properties Class 12?

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.

What are the three properties of field lines?

1 Answer

• Field lines are continuous curves without any breaks.
• Two field lines cannot cross each other.
• Electrostatic field lines start at positive charges and end at negative charges.
• They do not form closed loops.

What is basic properties of electric charge?

Charge is a scalar quantity. Charge is transferrable, they transfer from one body to another. Like charges repel each other and unlike charges attract each other. Charge is always associated with mass.

What is the formula of electric field lines?

The units of electric field are N/C. E = F q test = k | Q | r 2 . This equation gives the magnitude of the electric field created by a point charge Q. The distance r in the denominator is the distance from the point charge, Q, or from the center of a spherical charge, to the point of interest.

What are the properties of electric charge class 10th?

What are the four properties of electric charge?

• The charge is a scalar quantity as it has only magnitude and no direction.
• The charge can be positive or negative.
• The charge is a conserved quantity which means charge can neither be created nor be destroyed.
• A Coulomb of charge contains around 6 × 1018 electrons.

What is the relationship between electric field and electric field lines?

Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location.

What is electric field explain?

electric field, an electric property associated with each point in space when charge is present in any form. The strength of an electric field E at any point may be defined as the electric, or Coulomb, force F exerted per unit positive electric charge q at that point, or simply E = F/q.

What are the basic properties of charge Class 8?

Basic Properties of Electric Charge

• Like charges repel while unlike charges attract each other.
• Charge is a scalar.
• Charge is transferable: When a charged body is put in contact with an uncharged body, the uncharged body becomes charged due to transfer of electrons from one body to the other.

What direction do electric field lines go?

Electric field lines point in the direction in which a positive test charge would respond to the electrostatic force; that is, away from positive charges and towards negative charges.

What is the definition of field lines?

Definition of field line. : any one of a system of nonintersecting lines so drawn in mapping a vector field that the direction of the tangent to it at any point is that of the vector at that point.

What is an electric field line?

Electric field. A line tangent to a field line indicates the direction of the electric field at that point. Where the field lines are close together, the electric field is stronger than where they are farther apart. The magnitude of the electric field around an electric charge, considered as source of the electric field,…

What is the definition of electric field?

Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge.