# Why the line of a force are always normal to the surface of conductor?

## Why the line of a force are always normal to the surface of conductor?

Electric field is defined as the gradient of potential and the surface of a conductor has a constant potential. Therefore, there is no field along the surface of the conductor and hence the electrostatic field at the surface of a charged conductor should be Normal to the surface at every point.

## Why two electric lines of force passes normally from a conductor?

They start from a positive charge and end on a negative charge. A tangent drawn to a line of force at any point shows the direction of the electric field at that point. Two lines of force never intersect each other. The line of force always originates perpendicular to the surface of a charged conductor.

Why are the electric field lines always perpendicular to the equipotential lines?

Since the electric field lines point radially away from the charge, they are perpendicular to the equipotential lines. The potential is the same along each equipotential line, meaning that no work is required to move a charge anywhere along one of those lines.

Why do electric field lines never 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 If lines for two different values of the potential were to cross, then they would no longer represent equipotential lines.

### Why do two electric lines of force never intersect each other?

Electric lines of force never intersect because, at the point of intersection, two tangents can be drawn to the two lines of force. This means two directions of the electric field at the point of intersection, which is not possible.

### What are electric lines of force explain about the properties of electric lines of force?

Properties of electric lines of force 1) The electric lines of force start from a positive charge and ends on a negative charge. 2) The electric lines of force always enter or leave the charged surface normally. 3) Electric lines of force can never intersect each other.

Why the electric field lines never cross each others?

Do electric field lines actually exist?

Electric field lines never intersect. In an uniform electric field, the field lines are straight, parallel and uniformly spaced. If the electric field in a given region of space is zero, electric field lines do not exist. The tangent to a line at any point gives the direction of the electric field at the point.

#### Why can lines of force never cross one another select all that apply?

Lines of force represent the strength of the electric field at any given point. Visually the denser we draw the lines, the stronger the field is. Therefore the lines representing the field cannot cross each other at any given location in space.

#### Can electric field lines cross a charged conductor?

The statement that electric field lines cannot pass through a conductor, is simply wrong.

What is the force on a conducting sphere due to?

The force on the sphere is now due to the field from the point charge q acting on the two image charges: Figure 2-29 (a) If a conducting sphere carries a constant charge Q 0 or (b) is at a constant voltage V 0, an additional image charge is needed at the sphere center when a charge q is nearby.

Why are electric field lines perpendicular to the surface of conductor?

Electric Field lines are perpendicular to the surface of any conductor because of vector addition of the fields. Take any two random field lines do their vector sum their resultant will come out to be normal to the surafce.

## Why does the electric field inside a conductor have to be zero?

If there were an electric field component parallel to the surface of the conductor, then it would cause the electric charge to move along the surface, thus violating the equilibrium. The equilibrium is also the reason, the field inside the conductor will have to be zero. What does Google know about me?

## What is the electric charge on the surface of a sphere?

According to Gauss’s Law for Electric Fields, the electric charge accumulated on the surface of the sphere can be quantified by Based on Gauss’s theorem, surface charge density at the interface is given by The figure below shows surface charge density at the surface of sphere.