# E-Field of non-conducting plane

• Fanman22
In summary, the three large sheets shown in the figure are separated by a distance of 20.0 cm. The first and third sheets have surface charge densities of +6.50 µC/m2 and -6.50 µC/m2, respectively, while the middle sheet is conducting but has no net charge. The electric field between the left and middle sheets can be calculated using the equation E = charge density / (2*epsilon) and has a value of 3.67e5 N/C. However, this does not account for all the charge that produces an electric field in the region. Considering the field from multiple planes of charge may give a different result. The electric field between the middle and right sheets can also
Fanman22
Three very large sheets are separated by equal distances of 20.0 cm (Fig. 22-42). The first and third sheets are very thin and nonconducting and have surface charge densities of +6.50 µC/m2 and -6.50 µC/m2, respectively. The middle sheet is conducting but has no net charge.

http://img.photobucket.com/albums/v225/Fanman22/22-42alt.gif

What is the electric field between the left and middle sheets?
What is the electric field between the middle and right sheets?

Since it says the sheets are very large, and there is only a 0.2m separation between the surfaces, it seems logical that the E-field can be considered as calculating the field at a point close to the surface with the following equation:

E = charge density / (2*epsilon) = 6.5e-6/(2*(8.85e-12)) = 3.67e5 N/C

But apparently that is wrong even though I am reading it straight from my text??

Last edited by a moderator:
Fanman22 said:
Three very large sheets are separated by equal distances of 20.0 cm (Fig. 22-42). The first and third sheets are very thin and nonconducting and have surface charge densities of +6.50 µC/m2 and -6.50 µC/m2, respectively. The middle sheet is conducting but has no net charge.

http://img.photobucket.com/albums/v225/Fanman22/22-42alt.gif

What is the electric field between the left and middle sheets?
What is the electric field between the middle and right sheets?

Since it says the sheets are very large, and there is only a 0.2m separation between the surfaces, it seems logical that the E-field can be considered as calculating the field at a point close to the surface with the following equation:

E = charge density / (2*epsilon) = 6.5e-6/(2*(8.85e-12)) = 3.67e5 N/C

But apparently that is wrong even though I am reading it straight from my text??

Perhaps you are not including all the charge that produces an electric field in that region. Think about the field for one plane of charge; then think about the field from multiple planes of charge.

Last edited by a moderator:

The electric field between the left and middle sheets would be 3.67e5 N/C, since the left sheet has a positive charge and the middle sheet is conducting and therefore has no net charge. This means that the electric field lines would point away from the left sheet and towards the middle sheet.

The electric field between the middle and right sheets would also be 3.67e5 N/C, since the middle sheet is conducting and has no net charge, and the right sheet has a negative charge. This means that the electric field lines would point away from the middle sheet and towards the right sheet.

Your calculation for the electric field is correct. It is possible that the solution provided may have made a mistake or used a different method for calculating the electric field. It is always a good idea to double check your calculations and make sure they are consistent with the given information and the equations provided in your textbook.

## 1. What is an E-Field of a non-conducting plane?

The E-field of a non-conducting plane refers to the electric field that is generated by a non-conductive surface or material. This field is responsible for the movement of electric charges and can be measured in units of volts per meter.

## 2. How is the E-Field of a non-conducting plane different from a conducting plane?

The main difference between the E-field of a non-conducting plane and a conducting plane is that a non-conducting plane does not allow the flow of electric charges, while a conducting plane does. This means that the E-field of a non-conducting plane is typically weaker than that of a conducting plane.

## 3. What factors affect the strength of the E-Field of a non-conducting plane?

The strength of the E-field of a non-conducting plane is affected by several factors, including the distance from the plane, the shape and size of the plane, and the amount of charge present on the plane. These factors can all impact the intensity and direction of the electric field.

## 4. Can the E-Field of a non-conducting plane be manipulated?

Yes, the E-field of a non-conducting plane can be manipulated by changing the factors that affect its strength. For example, by altering the distance from the plane or the amount of charge present, the intensity and direction of the electric field can be modified.

## 5. What are some real-world applications of the E-Field of a non-conducting plane?

The E-field of a non-conducting plane has many practical applications, such as in the design of electronic devices, the study of atmospheric electric fields, and the development of insulation materials. It is also essential in understanding the behavior of electromagnetic waves in non-conductive materials.

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