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Is it possible that electric intensity at a point is zero but electric potential is not zero?
Wiki User
∙ 13y ago
There are two answers to your question, and they depend on whether we're talking about electrostatics or electrodynamics.
Electrostatics:No. In the absence of a varying magnetic field, the electric field intensity is equal to just the negative gradient of the electric potential; E = -∇Φ. So, if Φ is 0, its gradient, which is just the vector field made from the partial derivatives of Φ, has to be 0. The reverse, however, can happen. E can be 0, but Φ doesn't have to be; it can also be a non-zero constant. Electrodynamics:Yes. In the presence of a varying magnetic field, E = -∇Φ - ∂A/∂t, where A is the magnetic vector potential, and t is time. So, if Φ is 0 this time, E can still be equal to the possible non-zero term, -∂A/∂t.Wiki User
∙ 13y ago
Wiki User
∙ 13y agoHighly unlikely, but possible none the less.
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What is the voltage at the location of a Coulomb charge that has an electric potential?
A positive test charge of 1.6 x 10-11 C is placed in an electric field The force acting on it is 3.2 x 10-4 N What is the magnitude of the electric field intensity at the point where the charge is placed
Can two different equipotential lines cross each other?
No. If two equipotential surfaces intersect, then there would be two values of electric potential at the point of intersection, which is not possible.
Why is the potential at a point a scalar quantity?
Because the potential energy consumed or released when a charge is moved from any point to any other point (in an unchanging electric field) is independent of the path. Therefore the potential at any point is represented by a single number (of volts, if you like). If it's a single-number function of position, it's a scalar that has no direction. The gradient of the potential function on the other hand is a vector, the electric field.
In an electric field 0.90 J of work is required to bring 0.45 C of charge from point A to point B. What is the electric potential difference between points A and B?
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What is the difference between electric potential and electric potential energy?
Electric potential energy is electric energy that is stored in a battery. so all the energy it creates is stored within the battery. It doesn't get used until someone uses it.=Electric potential is the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per one coulomb of charge at another point in circuit also called voltage.=
Do electrons move up or down a potential gradient?
The potential gradient gives the electric field intensity E at point in electric field which is directed from high to low potential. An electron being a negative charge particle therefore will tend to move from low potential to high potential, hence will move up the electric field
Do electron moves up or fall down a potential gradient?
The potential gradient gives the electric field intensity E at point in electric field which is directed from high to low potential. An electron being a negative charge particle therefore will tend to move from low potential to high potential, hence will move up the electric field
Why you take point at infinity in describing electric potential?
It is only for our convinience. Electric Potential can be taken by using any point.
What is the voltage between point p and the battery?
The voltage between point p and the battery is not able to measured exactly. You can never measure the absolute electric potential at any point. its just not possible. That is why we talk about difference in potential.
What is the voltage at the location of a Coulomb charge that has an electric potential?
A positive test charge of 1.6 x 10-11 C is placed in an electric field The force acting on it is 3.2 x 10-4 N What is the magnitude of the electric field intensity at the point where the charge is placed
Can two different equipotential lines cross each other?
No. If two equipotential surfaces intersect, then there would be two values of electric potential at the point of intersection, which is not possible.
Why is the potential at a point a scalar quantity?
Because the potential energy consumed or released when a charge is moved from any point to any other point (in an unchanging electric field) is independent of the path. Therefore the potential at any point is represented by a single number (of volts, if you like). If it's a single-number function of position, it's a scalar that has no direction. The gradient of the potential function on the other hand is a vector, the electric field.
In an electric field 0.90 J of work is required to bring 0.45 C of charge from point A to point B. What is the electric potential difference between points A and B?
nn
What is electro static potential at a point?
it is defind as the amount of work done to bring a unit positive charge from infinity to that point in the electric feild it is devoted by V .: electric potential = workdone/charge V=w/q si unit is v
What is the difference between electric potential and electric potential energy?
Electric potential energy is electric energy that is stored in a battery. so all the energy it creates is stored within the battery. It doesn't get used until someone uses it.=Electric potential is the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per one coulomb of charge at another point in circuit also called voltage.=
What do you mean by electric flux in electrostatics?
Under an electric field, magnitude and direction of electric intensity is different in every point.If the electric intensity can be defined through a closed line (direction of electric intensity will be along the tangent of any point of that line)this is called electric lines of force. Electric lines of forces passing through an closed electric surface perpendicularly, is called electric flux.
How can the electrical potential energy of a charged particle in an electric field be increased?
THIS IS A GOOD QUESTION IF WE PLACE THE CHARGE IN THE ELECTRIC FIELD AT A DISTANCE R FROM THE ELECTRIC FIELD AND PLACED THE ANOTHER POINT CHARGE AT A ANOTHER DISTANCE r WHERE R IS GRATER THAN THE SMALL R THEN THE ELECTRIC FIELD AT r IS MORE THAN THE ELECTRIC FIELD AT POINT R.ORWE CAN SAY THAT IF THE CHARGE IS PLACED IN THE DIRECTION OF ELECTRIC FIELD THAN ITS ELECTROSTATIC POTENTIAL ENERGY WILL DECREASE OR WHEN IN DIRECTION OPPOSITE THAN VICEVERSA
