Electric Pressure on a Charged Surface due to External EF

In summary, electric pressure on a charged surface is the force per unit area exerted by an electric field on a charged surface. It can be calculated using the equation P = ε0E², where P is the electric pressure, ε0 is the permittivity of free space, and E is the electric field strength. The electric pressure is directly proportional to the square of the electric field strength and can affect the behavior of charged particles by causing repulsion and alignment. The strength and direction of the external electric field, distance between the charged surface and the source, and material properties can all affect the electric pressure on a charged surface.
  • #1
gracy
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Why he did not consider parallel force?Will parallel component of electric field not produce electric pressure on the surface?
 
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  • #2
The parallel component can only produce/result in a shearing force ; zero net pressure. Or put another way, it is orthogonal to the direction necessary to produce movement.
 
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  • #3
You mean shear force does not exert pressure?
 
  • #4
gracy said:
You mean shear force does not exert pressure?
Shear force will be responsible for surface tension, as he said in the video. Pressure will be due to the force normal to the area.
 

What is electric pressure on a charged surface?

Electric pressure on a charged surface is the force per unit area exerted by an electric field on a charged surface. It is caused by the repulsive forces between the charges on the surface and the external electric field.

How is electric pressure calculated on a charged surface?

The electric pressure on a charged surface can be calculated using the equation P = ε0E², where P is the electric pressure, ε0 is the permittivity of free space, and E is the electric field strength.

What is the relationship between electric pressure and electric field strength?

The electric pressure on a charged surface is directly proportional to the square of the electric field strength. This means that as the electric field strength increases, the electric pressure also increases.

How does the electric pressure on a charged surface affect the behavior of charged particles?

The electric pressure on a charged surface can cause charged particles to repel each other, creating a repulsive force that can affect their movement and behavior. It can also cause charged particles to align themselves in a particular direction, depending on the direction of the external electric field.

What factors can affect the electric pressure on a charged surface?

The electric pressure on a charged surface can be affected by several factors, including the strength and direction of the external electric field, the distance between the charged surface and the source of the field, and the properties of the material of the charged surface, such as its permittivity and charge distribution.

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