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.
Is electric field same in equipotential surface?
Equipotential surfaces have equal potentials everywhere on them. For stronger fields, equipotential surfaces are closer to each other! These equipotential surfaces are always perpendicular to the electric field direction, at every point.
Is electric field zero in equipotential surface?
At distance r from a charge, the electric field strength value is same and this is called equipotential surface (if a sphere of radius r is considered around it). On this surface the potential difference between two points is zero not the electric field.
What does equipotential mean in electric field?
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.
Why is electric field 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.
Is the electric field the same everywhere?
At a point in space, the direction of the electric field is tangent to the electric field line that passes through that point. The magnitude of the electric field is strongest in regions where the field lines are closest together. … In both drawings I and II the electric field is the same everywhere.
What is angle between electric field and equipotential surface?
The angle between the electric field and the equipotential surface is always 90. The equipotential surface is always perpendicular to the electric field.
What is electric field equation?
The electric field E is defined to be E=Fq E = F q , where F is the Coulomb or electrostatic force exerted on a small positive test charge q. … The magnitude of the electric field E created by a point charge Q is E=k|Q|r2 E = k | Q | r 2 , where r is the distance from Q.
What is meant by equipotential surface?
The surface which is the locus of all points which are at the same potential is known as the equipotential surface. … In other words, any surface with the same electric potential at every point is termed as an equipotential surface.
Is equipotential surface flat?
Equipotential surface is flat. … Electric lines are perpendicular to equipotential surface.
What is the use of 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. Work is needed to move a charge from one equipotential line to another. Equipotential lines are perpendicular to electric field lines in every case.
What is an equipotential surface give an example?
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 Class 12?
Equipotential surface is a surface where all the points lying on the surface have the same electric potential. This means that a charge will have the same potential energy at every point on the equipotential surface.