# What is equipotential surface give an example?

Last Update: April 20, 2022

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Asked by: Prof. August Feest II

a surface all of whose points have the same potential. For example, the surface of a conductor in electrostatics is an equipotential surface. In a force field the lines of force are normal, or perpendicular, to an equipotential surface.

## What is an equipotential surface give an example class 12?

An equipotential surface is one where the potential is same at every point on the surface. For a single charge, Since r is constant, the equipotential surfaces are concentric spherical surfaces centered at the charge.

## What do you mean by equipotential surfaces?

An equipotential surface is the collection of points in space that are all at the same potential. Equipotential lines are the two-dimensional representation of equipotential surfaces. Equipotential surfaces are always perpendicular to electric field lines. Conductors in static equilibrium are equipotential surfaces.

## What is the equipotential?

Equipotential surfaces can be observed as both equal gravity potential and equal electric potential surface.As we know that all the surfaces have equal potential, therefore, the work done on moving any charged body will be zero because the potential difference between the two points will be zero.

## What is equipotential surface give its properties?

Properties of Equipotential Surface

Always, the electric field is perpendicular to an equipotential surface. The equipotential surfaces are of concentric spherical shells for a point charge. The potential is constant inside a hollow charged spherical conductor. This can be treated as equipotential volume.

## Equipotential surfaces (& why they are perpendicular to field) | Electric potential | Khan Academy

27 related questions found

### What are the three properties of equipotential surface?

Properties of Equipotential Surface

The electric field is always perpendicular to an equipotential surface. Two equipotential surfaces can never intersect. For a point charge, the equipotential surfaces are concentric spherical shells. The direction of the equipotential surface is from high potential to low potential.

### What is the formula of equipotential surface?

Equipotential lines are perpendicular to electric field lines in every case. W = −ΔPE = −qΔV = 0. W = Fd cos θ = qEd cos θ = 0. Note that in the above equation, E and F symbolize the magnitudes of the electric field strength and force, respectively.

### Why do equipotential lines never cross?

Equipotential lines at different potentials can never cross either. 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. ... Note: It is possible for two lines representing the same potential to cross.

### Why electric field inside a conductor is zero?

A conductor is a material that has a large number of free electrons available for the passage of current. ... Hence in order to minimize the repulsion between electrons, the electrons move to the surface of the conductor. Hence we can say that the net charge inside the conductor is zero.

### Do equipotential lines have direction?

field lines show direction from the + to the - plate, but equipotential lines have no direction.

### What are equipotential surfaces Why are they called so?

When you find a constant potential upon any part of the surface is known as an equipotential surface. We can also define it as the result of the potential difference between any two points is zero. A surface stands for the locus of all points. Each point delivers the same potential; then, it is called equipotential.

### What are the equipotential surfaces for an infinite line charge?

The shape of equipotential surface for an infinite line charge is coaxial cylindrical.

### Are equipotential surfaces always equally spaced?

will always be equally spaced.

### What is equipotential surface write its characteristics?

The characteristics of an equipotential surface are: Potential remains the same at all the points on equipotential surface. No work is required to move a charge on an equipotential surface. No two equipotential surfaces can ever intersect each other.

### Is Earth an equipotential surface?

Yes, the earth is a conductor and its surface is equipotential.

### Is electric field zero in equipotential surface?

An equipotential surface is everywhere perpendicular to the electric field that it characterizes. The work done by the electric field on a particle when it is moved from one point on an equipotential surface to another point on the same equipotential surface is always zero.

### Is the electric field inside an insulator zero?

Inside a conductor E=0 everywhere, ρ = 0 and any free charges must be on the surfaces. ... In an insulator charges cannot move around, and the charge density can have any form. If ρ(r) = 0, the potential is non-uniform, and E = 0 inside the insulator.

### Is there an electric field inside a current carrying conductor?

Answer: Electric field inside a current carrying conductor is zero as the charges inside it distributes themselves on the surface of the conductor. The net charge in the current carrying wire is zero.

### Why is there no electric field inside a charged sphere?

Electric field lines start from positive charges and terminate at negative charges. Every electric field line generated by the inner sphere terminates in the inner surface of the outer sphere. This is why there is no electric field inside a charged spherical conductor.

### Why do equipotential lines get further apart?

An equipotential surface is a circular surface drawn around a point charge. The potential will remain the same on this surface. The equipotential surface gets further apart because as the distance from the charge increases the potential decreases.

### Why is Earth equipotential surface?

Any object in the earth's gravitational field has potential energy derived from being pulled toward the Earth. ... There are an infinite number of points where the potential of gravity is always the same. They are known as equipotential surfaces.

### Do electric field lines exist?

Electric field lines never intersect. ... The electric field lines can never form closed loops, as line can never start and end on the same charge. These field lines always flow from higher potential to lower potential. If the electric field in a given region of space is zero, electric field lines do not exist.

### Why electric field is normal to equipotential surface?

Since the electric field lines are directed radially away from the charge, hence they are opposite to the equipotential lines. ... Therefore, the electric field is perpendicular to the equipotential surface.

### What do the lines of equipotential represent?

Equipotential lines are like contour lines on a map which trace lines of equal altitude. In this case the "altitude" is electric potential or voltage. Equipotential lines are always perpendicular to the electric field. In three dimensions, the lines form equipotential surfaces.

### What is electric flux Class 12?

Electric flux - Electric flux is the measure of number of electric field lines passing through any surface . It is a scalar quantity. It's S.I unit is volt meters. Gauss Law- It is defined as the total flux linked within a closed surface is equal to the 1ε0 times the total charge enclosed by that surface.