Where the field strength is zero, does the electric potential have to be zero? Where the electric po

Not necessarily. For example, two charges of the same kind have zero field strength at the midpoint of their connection, but the electric potential is not zero. Two dissimilar charges, their connection point potential is zero, but the field strength is not zero.

No, for example, in the middle of two positive and negative charges, the electric field strength is zero, but the electric potential is maximum.

Of course not.

Electric potential is a relative quantity, and the electric potential at a certain point is relative to the point of zero electric potential, which is artificially defined.

The field strength is the gradient field of the electric potential, that is, it represents the speed of change of the electric potential, and the field strength is zero at the end of the electric power supply and the potential is constant, not where the electric potential is zero.

Not necessarily. Because the electric potential is a scalar quantity, and the field strength is a loss. The electric potential is like gravitational potential energy, and any place can be artificially defined as having an electric potential of 0!

The electric potential is a scalar quantity, and its magnitude can be artificially defined. For example, define infinity as zero. So there is no absolute definition of the relationship between the two.

If the field strength is 0, the electric potential is not necessarily 0. The field strength is not directly related to the electric potential, the higher the field strength, the higher the potential, and the zero field strength where the potential is not necessarily zero. If the electric potential is zero, it is artificially selected, so the field strength of the place where the electric potential is zero can be non-zero.

Field strength: The strength of the electric field is a physical quantity used to express the strength and direction of the electric field. Experiments show that at a certain point in the electric field, the ratio of the electric field force to the charge at the test point is a quantity independent of the charge at the test point.

Therefore, the direction of the electric field force experienced by the charge at the test point at that point is the direction of the electric field, and the vector with the above ratio is the magnitude of the vector definition as the electric field strength of the point, which is often expressed by e.

Not necessarily. The zero electric potential point is artificially prescribed and relative. That is, it can be assumed that the electric potential at any position is zero. The field strength is not necessarily zero.

The electric potential is equivalent to the height, that is, the magnitude of the electric potential is not absolute.

Only when the zero potential energy surface is selected can the magnitude of the electric potential at a certain point be determined.

However, the potential difference is absolute. It has nothing to do with the choice of the zero potential energy surface.

We know that the magnitude of the field strength e at a point in the electric field is determined, while the magnitude of the electric potential at that point is uncertain.

Therefore, there is no direct relationship between the electric potential and the field strength. The same is true in non-uniform electric fields.

For example, at a point where the electric potential is 0, the field strength can be non-zero

At the point where the field strength is 0, the electric potential can be non-zero

No, e.g. the midpoint of the line connecting two point charges with the same charge, the field strength is zero, but the electric potential is not zero.

Wrong. Electric field strength is an absolute concept, but electric potential is relative, that is, when the surrounding charge distribution is determined, the value and direction of the electric field strength are uniquely determined. However, it is required that there should be a reference standard for the magnitude change of the electric potential, that is, if I want to know the electric potential of a certain point, I must first specify a zero electric potential surface, and then calculate the electric potential of the point I want to require.

Electric potential is like gravitational potential energy, and the amount of gravitational potential energy of an object depends on the reference standard.

Like this problem, I can specify that the potential at that point is zero, which is perfectly fine.

Of course, in practical applications, we are generally used to setting infinity or the earth as the zero point of electric potential.

No, the midpoint electric field strength of two equal charges of the same kind is 0 and the electric potential is not zero.

The electric potential is only relative, and like the gravitational potential energy, you can specify that the gravitational potential energy at any point is zero, i.e., the zero potential energy surface, and likewise you can specify that the electric potential at any point is zero, and the root electric field strength does not matter.

How is electric potential defined?

Divide the potential energy by the amount of electricity, right?

Where does electric potential energy come from?

The presence of force is needed in the system, right?

The force existed. There is an electric field strength.

That's a powerful premise.

So if even the electric field strength doesn't exist, where does the electric potential come from?

If the electric field strength is 0, then there is no electric field there.

Or maybe there was an electric field, but it didn't work anymore.

Electric potential exists only in an electric field.

Detached from the angle of force and energy, there is no electric potential.

Many students were confused.

The electric potential is relative.

Also: The answer is very clear in the table on page 39 of Physics 3-1 Wang Houxiong, so let's see it for myself.

No, the electric potential is only relative, and the gravitational potential energy.

In the same way, it is possible to stipulate that the gravitational potential energy at any point is zero, i.e., the surface of zero potential energy, and likewise it can be specified that the electric potential at any point is zero, the magnitude of the electric potential, and the strength of the electric field.

It does not matter. Hence the electric field strength is zero and the electric potential is not necessarily zero.

The electric potential is only magnitude and has no direction and is a scalar quantity.

Its values are not absolute, only relative. The electric field force when the unit positive charge moves from a point A in the electric field to the reference point O (i.e., the zero potential energy point, which is generally taken from infinity or the earth as the zero potential energy point).

The ratio of the work done to the amount of electricity it receives.

For example, if a conductor is placed in an electric field generated by a positive charge, when the conductor reaches electrostatic equilibrium, the electric field strength inside the conductor is 0 everywhere, and the electric potential of the conductor is positive (take the electric potential at infinity as 0).

The electric potential is only related to the selection of the zero potential point. If the electric field strength is zero, the electric potential is not necessarily zero, and if the electric field strength is zero, the potential difference between the two points must be zero.

There is no correlation between the value of the electric potential and the strength of the electric field.

Because, the field strength is objective and is determined by the electric field itself. You can specify that the electric potential is zero at any position--- you can specify that the electric potential is zero where the field strength is zero, or that the electric potential is zero where the field strength is not zero.

Not necessarily, the electric potential is set by people

1. The ratio of the work done by the electric field force to the electric charge when the positive charge moves from a point A in the electric field to the reference point O (that is, the zero potential energy point, generally taking infinity or the earth as the zero potential energy point), which shows that the selection of electric potential is arbitrary, not fixed.

2. The ratio of the electric field force f to the charge q at a certain point in the electric field is called the electric field strength of the point, referred to as the field strength.

3. =q (where is the potential energy, q is the amount of charge, is the electric potential), i.e. = q. That is, the field strength is fixed, i.e. its magnitude is only related to the point charge.

4. In a straight line, the field strength increases from 0 to e, and then we set the reference point that the electric potential at one end of the field strength e is 0, then the electric potential at the other end must not be 0. When the potential zero point is chosen, we cannot assert that this is the zero point of the field strength. The 0 point of the electric potential can be selected at will, so the field strength is not necessarily 0 where the electric potential is 0.