In the region of constant electric potential,
electric field is zero
so there is no charge inside the region.
What is constant potential?
A constant-potential (CP) charging source implies
that the charger maintains a constant voltage independent of the charge current load
. … Vented nickel-cadmium and lead-acid batteries exhibit a pronounced voltage increase in response to an applied constant current as the battery approaches full charge.
Which of the following option is correct in a region of constant potential?
In a region of constant potential (V = constant) , E=-dVdr=0, i.e., electric field is zero. As E=0, there can be no charge inside the region. Choices (b) and
(c )
are correct.
Which of the following about potential at a point due to a given point charge is true?
Q. 3 Which of the following about potential at a point due to a given point charge is true ? Options: …
(d) is directly proportional to the square of distance from the point charge
.
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.
Is an a reason of constant potential electric field is zero?
If the electric potential is constant, then there is no direction of greatest increase. Hence
the gradient of the electric potential is zero
and the electric field is zero everywhere inside the region of constant electric field.
Which of the following statement is correct the electric field at a point is?
Electric field at a point is
continuous if there is no charge at that point
. And the field is discontinuous if there is charge at that point. So both options (b) and (c) are correct.
How is constant potential difference?
it may also be defined as the
electric charge in a circuit between the two points
. It is a very important and useful concept of electricity and mostly the concept of potential difference between the points is used rather than the potential at the points.
What is constant potential charging?
Definition: Charging technique
where the output voltage of the charge source is held constant and the current is limited only by the resistance of the battery
.
What is the potential inside a sphere?
is
zero at every point
inside.
What is potential due to a point charge?
Electric potential of a point charge is
V=kQr V = k Q r
. Electric potential is a scalar, and electric field is a vector. Addition of voltages as numbers gives the voltage due to a combination of point charges, whereas addition of individual fields as vectors gives the total electric field.
What is relation between electric field and potential?
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 is meant by point charge?
A point charge is
a hypothetical charge located at a single point in space
. While an electron can for many purposes be considered a point charge, its size can be characterized by length scale known as the electron radius.
What is an equipotential surface give 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 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.
What is the importance of equipotential surface?
The spacing between equipotential surfaces enables us to identify regions of strong and weak fields
. 4. Two equipotential surfaces can never intersect. If two equipotential surfaces could intersect, then at the point of intersection there would be two values of electric potential which is not possible.
