# Does two equipotential lines cross?

Last Update: April 20, 2022

This is a question our experts keep getting from time to time. Now, we have got the complete detailed explanation and answer for everyone, who is interested!

**Asked by: Leon Murazik**

Score: 4.4/5 (15 votes)

**Equipotential lines at different potentials can never cross either**. This is because they are, by definition, a line of constant potential. ... If lines for two different values of the potential were to cross, then they would no longer represent equipotential lines.

## Do equipotential surfaces cross each other?

**They cannot intersect each other** because two different equipotential surfaces have different electric potential. ... Therefore, components of electric field intensity along the equipotential surface. It means the electric field intensity is perpendicular to the surface.

## Can equipotential surfaces touch or intersect?

**Two equipotential surfaces can't intersect**. The direction of the electric field at any point on an equipotential surface is perpendicular to the surface at that point.

## Why do two equipotential surfaces never intersect?

they cannot intersect each other because two different **equipotential surface have different electric potential**, so if they intersect then the point of intersection will have two different potentials at the same point which is not possible.

## Why can't two electric field lines cross?

Electric field lines always point in one direction, at any point. **When two lines intersect each other, tangents are drawn at that point indicating two directions of electric field lines**, which is impossible therefore electric field lines cannot cross over each other.

## can equipotential lines cross eachother/Can equipotential lines intersect eachother....

**38 related questions found**

### Are electric field lines straight?

Electric **field lines are always straight**. All electric potemtials are measured with respect to the negative terminal of the power supply.

### 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.

### Can you have two equipotential?

**No, it is not possible for two equipotential surfaces to intersect**. This is because if two equipotential surfaces intersect, then there will be two values of potential at the point of intersection, which is not possible.

### Why do equipotential surfaces get closer to each other near the point charges?

The relationship between the electric field and potential due to charge is given as E = dV/R. Thus if dV is constant and R is inversely proportional to E. Therefore, all equipotential surfaces are **closer at a higher value of E.** **For any charge E is higher near load** thus equipotential surfaces are closer to the charge.

### Why there is no work done in moving a charge from one point to another on a equipotential surface?

Answer: An equipotential surface is one in which all the points are at the same electric potential. If a charge is to be moved between any two points (say from point A to point B) on an equipotential surface, according to the formula dW=q⋅dVdW=q⋅dV, **the work done becomes zero**.

### Do equipotential lines have direction?

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

### Are equipotential lines always closed?

Equipotential lines in the cross-sectional plane are **closed loops**, which are not necessarily circles, since at each point, the net potential is the sum of the potentials from each charge.

### What is shape of equipotential surface of a point a charge and line charge?

For a point charge, the equipotential surfaces are **concentric spherical shells centered at the charge**.

### What do u mean by equipotential surface?

In other terms, an equipotential surface is **a surface that exists with the same electrical potential at each point**. If any point lies at the same distance from the other, then the sum of all points will create a distributed space or a volume.

### Why equipotential surfaces are not equidistant?

The equipotential surface is not at an equal distance **because the electric field due to a charge is not constant**. The electric field is inversely proportional to the square of the distance of the point from the charge and electric potential is inversely proportional to the distance of the point from the charge.

### What is angle between electric field and equipotential surface?

The angle between the electric field and the equipotential surface is always **90 ^{0}**. The equipotential surface is always perpendicular to the electric field.

### 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**.

### What happens when equipotential lines get closer together?

Equipotential lines. Equipotential lines provide a quantitative way of viewing the electric potential in two dimensions. Every point on a given line is at the same potential. ... When lines are close together, **the slope is steep**, e.g. a cliff, just as close equipotential lines indicate a strong electric field.

### What happens when equipotential lines are closer together?

Equipotential lines. Equipotential lines provide a quantitative way of viewing the electric potential in two dimensions. Every point on a given line is at the same potential. ... When lines are close together, **the slope is steep**, e.g. a cliff, just as close equipotential lines indicate a strong electric field.

### Why must electrostatic field be normal to the surface?

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.

### What happens in a region of constant potential?

In the region of constant electric potential, **electric field is zero so there is no charge inside the region**.

### Can two equal potential surfaces cut each other?

At the point of intersection, two normals can be drawn. ... This implies that at that point two different directions of the electric field are possible, which is not possible physically. Hence, **two equipotential surfaces cannot cut each other**.

### 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 the electric field inside a conductor zero?

**The electric field is zero inside a conductor**. Just outside a conductor, the electric field lines are perpendicular to its surface, ending or beginning on charges on the surface. Any excess charge resides entirely on the surface or surfaces of a conductor.

### Is the electric potential inside a conductor zero?

Since an electric field requires the presence of a charge, the electric field inside the conductor will be zero i.e., **E=0** . Now the electrostatic field can be expressed as E=−dVdr . Thus the electric potential will be constant inside the conductor.