The electric field between the point charges varies depending on the distance from each charged point, becoming weaker with increasing distance. The electric field between the parallel lines is relatively constant. 1. … Equipotential lines are lines connecting points of the same electric potential.

## Is electric field constant on equipotential lines?

Section Summary. An equipotential line is a line **along which the electric potential is constant**. An equipotential surface is a three-dimensional version of equipotential lines. Equipotential lines are always perpendicular to electric field lines.

## Is electric field same on equipotential surface?

**All points on an equipotential surface have the same electric potential** (i.e. the same voltage). … Electric field lines are always perpendicular to an equipotential surface.

## Why can’t electric field have components along an equipotential line?

There can therefore be no electric field along the line/surface defined by an equipotential. That means that the **only electric field allowed at a point on an equipotential must be perpendicular to the equipotential surface**, otherwise it would have a non-zero component along the surface.

## Where is the electric field constant?

Examples of constant electric fields would be the **fields around a stationary point charge or a stationary charged body or in the space within a capacitor with constant charges on the plates**. These are fields which do not change with time, so that (dE/dt) = 0.

## Where is the electric field strongest equipotential lines?

The electric field is strongest where we expect it to be, because in our graphs the equipotential lines are **closest when the distance is the least from the surfaces** – this corresponds to the greatest electric field strength should be closest to the surfaces.

## Where is electric field strongest?

The field is strongest **where the lines are most closely spaced**. The electric field lines converge toward charge 1 and away from 2, which means charge 1 is negative and charge 2 is positive.

## Can electric field be negative?

**Electric field is not negative**. It is a vector and thus has negative and positive directions. An electron being negatively charged experiences a force against the direction of the field. For a positive charge, the force is along the field.

## 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.

## Can electric field lines 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.

## What is the relation between electric potential and electric field?

The relationship between potential and field (E) is a differential: electric field is **the gradient of potential (V) in the x direction**. This can be represented as: Ex=−dVdx E x = − dV dx . Thus, as the test charge is moved in the x direction, the rate of the its change in potential is the value of the electric field.

## What are electric field line?

Electric field lines in an electric field are **imaginary lines**, the tangent to which, at any point, gives the direction of the electric field intensity. In simpler version, it can be said, an electric field line is a path along which a positive charge would move, if it is free to do so.

## How electric field is conformed?

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. The electric field is radially outward from a positive charge and radially in toward a negative point charge.