Is Electric Field Strength Constant? 7 Facts You Should Know


The electric field strength is the force experienced on the charge. This article discusses whether the electric field strength is constant throughout the field or is variable.

The electric field strength is constant in the uniform electric field. It depends upon the total number of charges and the distance between them. The electric field strength varies with the distance between the charge and the introduction of new point charges in the field; otherwise, it is constant.

The electric field strength does not depend on the drift velocity of charges. The potential differences have to be constant for the constant electric field strength. We shall further discuss the conditions and facts for the constant electric field in this topic.

When is electric field strength constant?

The intensity of the field generated by the charged particle is the strength of its electric field. Let us discuss when this electric field strength is constant.

The electric field strength is constant only when the rate of change of electric potential with distance is constant, and there is no variation in the total amount of charge present in that field. The electric flux density flowing through the area/electric field region is constant throughout.

How is electric field strength constant?

The electric field strength is a ratio of potential difference and the distance between the two charges/ surfaces. Let us see how the electric field strength can be constant.

The electric field strength is constant if the electric potential between the charges/ charged plates and the distance between both is invariable and constant. The potential difference between any two points in the electric field is zero if the electric field strength is constant.

Moreover, the electric field strength is constant if the force experienced on the unit charge particle present in the field is constant throughout the electric field region. The electric flux density in such a field also remains constant.

Does electric field depend on voltage?

The voltage at a point in the electric field is most vital to creating the electric field. Let us elaborately discuss the electric field dependency on voltage.

The electric field depends on the voltage and is directly proportional to the potential difference across the two charged points because it is responsible for building the electric field in that region. The voltage is the product of the electric field and the distance between the charges/ charged plates.

The electric field between the capacitor plates is due to the voltage difference across the oppositely charged plates. The formula gives the relation between the electric field and the voltage: E = V/d, where E is the electric field, V is a voltage, and d is the distance between the two charges.

Is electric field strength always constant?

The electric field strength is constant if the potential difference across the points is constant. Let us discuss whether the electric field strength is always constant or not.

The electric field strength is not always constant because it varies with an uneven potential difference at any point in the field. It also varies with the mobility of the charged particles in the field, unsteady electric force, the flux lines penetrating through the region, and the current flow.

The electric field strength also varies at the square rate of a distance between the two charges. The electric field strength will change if the distance between the charges also varies.

Is electric field strength constant between two plates?

The potential difference between the two charged plates generates the electric field. Let us clarify whether the electric field strength is constant between two plates.

The electric field strength between the two plates is constant because the total numbers of charges on the two plates have oppositely charged, and the area of the plates remains constant. If the plate size is tiny, then the distance between the two plates does not matter.

The formula gives the electric field between the two plates: E = Q/(Ae0); here, E is the electric field, Q is a total charge on the plates, A is the area of the plates, and e0 is the permeability of the free space.

Is the strength of an electric field the same everywhere?

An electric field’s strength depends upon the number of electric fluxes. Let us briefly discuss whether the strength of an electric field is the same everywhere.

The electric field strength of an electric field is the same everywhere in the uniform electric field because the electric flux passing through the unit area of the field is the same, and the potential difference at any two points in the field is constant. 

Conclusion

We can conclude with this article that the electric field strength is constant in the uniform field. The electric field strength depends upon the charge, potential difference, and distance between the two charges and varies with the variable electric flux and the drift velocity of the charges.

AKSHITA MAPARI

Hi, I’m Akshita Mapari. I have done M.Sc. in Physics. I have worked on projects like Numerical modeling of winds and waves during cyclone, Physics of toys and mechanized thrill machines in amusement park based on Classical Mechanics. I have pursued a course on Arduino and have accomplished some mini projects on Arduino UNO. I always like to explore new zones in the field of science. I personally believe that learning is more enthusiastic when learnt with creativity. Apart from this, I like to read, travel, strumming on guitar, identifying rocks and strata, photography and playing chess. Connect me on LinkedIn - linkedin.com/in/akshita-mapari-b38a68122

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