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What is Surface Charge Density
According to electromagnetism, surface charge density is known as the amount of electric charge in per unit length, volume or surface area. Volume charge density is known as the charge per unit of the quantity that is measured in the SI system as coulombs per cubic meter at any given volume. It is the charge per unit of the area on a two-dimensional surface. Linear charge density is referred to the quantity of the charge per unit length and it is measured in coulombs per meter in a line distribution.
Define Surface Charge Density
The measurement for the accumulation of electric charge in a respective field is known as surface charge density. It helps in measuring the total quantity of electric charge as per the given dimension although dimension can be the area, length or volume of the electrical body. Surface charge density can be of three types. For understanding how to find surface charge density, you must know that it is the measurement of the electrical charge in per unit of the space in one, two as well as three dimensions. These three kinds can be the following:
1. Per unit length area, for example, the linear charge density, in which q is known to be the charge and also the length on which it is dispersed. The SI unit is supposed to be m-1.
2. Per unit surface area, for example, the surface charge density in which q is referred to charge and A is known as the area of the respective surface. The SI unit here is Coulomb m-2.
3. Per unit volume, for example, volume charge density where V is the volume of the given surface and q is the charge. The SI unit of the Coulomb is m-3.
The most important objective to find the surface charge density is the amount of electric charge per unit of the surface area.
Surface Density Formula
Surface charge density is:
σ= qAσ = qA
Where,
σ = surface charge density
q = electric charge
A = surface area
Surface Charge Density Equation
The formula of surface charge density involves measurement from the total amount of electric charge accumulated over a surface area of a given object. It can be calculated by the charge per unit of the surface area.
In the surface density of charge formula, “q” is known as the charge of the object and A is the total area of the surface. And then the surface area of the charge density is given by:
σ= qAσ = qA
And the SI unit of the surface charge density is Cm-2.
The Formula of Surface Density: A Brief Explanation
According to the formula for surface charge density, charge density varies with the position just like mass density. As per the electromagnetic theory, the charge density functions as the continuous scalar function of position X as the fluid and p(x) are regarded as continuous charge distributions although all the real charge distributions are made up of discrete charged particles. All the charges are carried by subatomic particles.
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Source: Math Hello Kitty
Categories: Physics
