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Why electric field is perpendicular to the equipotential surface?
Because
the electric field lines point radially away from the charge
, they are perpendicular to the equipotential lines. … This implies that a conductor is an equipotential surface in static situations. There can be no voltage difference across the surface of a conductor, or charges will flow.
Is an equipotential surface perpendicular to the electric field?
Equipotential surfaces have equal potentials everywhere on them. … These equipotential surfaces are
always perpendicular to the electric field direction
, at every point.
What is an equipotential surface show that electric field is always directed perpendicular to an equipotential surface?
equipotential surfaces any surface with same electric potential at every point is called an equipotential surface. In this case the “altitude” is electric potential or voltage. … Movement along an equipotential surface requires no work because such movement is always perpendicular to the electric field.
All points on an equipotential
surface have the same electric potential
(i.e. the same voltage). The electric force neither helps nor hinders motion of an electric charge along an equipotential surface. Electric field lines are always perpendicular to an equipotential surface.
Where is the electric field the 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.
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.
What do u mean by equipotential surface?
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 importance of equipotential surface?
They give the direction of the electric field
. For a point charge, they are concentric spherical shells. Two equipotential surfaces can never intersect. The direction of the surface is from high potential to low potential.
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.
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.
Is electric field zero in equipotential surface?
Electric field is defined as the (negative) gradient of electrostatic potential. There can therefore
be no electric field along
the line/surface defined by an equipotential.
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.
Where is the electric field the strongest and weakest?
The relative magnitude of the electric field is proportional to the density of the field lines.
Where the field lines are close together the field is strongest
; where the field lines are far apart the field is weakest. If the lines are uniformly-spaced and parallel, the field is uniform.
Are electric field lines straight?
In an uniform electric field,
the field lines are straight, parallel and uniformly spaced
. The electric field lines can never form closed loops, as line can never start and end on the same charge. … Also, this is the path on which a positive test charge will tend to move if free to do so.
What are the three rules for drawing electric field lines?
- 1) Electric field lines are always drawn from High potential to. …
- 2) Two electric field lines can never intersect each other.
- 3) The net electric field inside a Conductor is Zero.
- 4) Electric field line from a positive charge is drawn radially outwards and from a negative charge radially inwards.
