How does the dielectric affect the charge distribution on a charged sphere?

In summary, bound surface charge density is the amount of electric charge per unit area within a material or at the interface between two different materials. It is caused by bound charges that are confined within a material. This is different from free surface charge density, where charges are able to move on the surface. Bound surface charge density is affected by factors such as material type, chemical composition, and physical properties. It can be measured using various techniques and is important in applications such as electrochemistry and semiconductor devices.
  • #1
Apashanka
429
15

Homework Statement


IMG_20190114_112104.jpg
[/B]

Homework Equations

[/B]

∫Dperpendiculards=qenclosed freecharge
D=ε0E+P

The Attempt at a Solution


D1+D2=q/2πr2
at a distance r from the centre
How to find D2 which is at the lower boundary e.g inside the dielectric??
 

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  • #2
Think about how, if any, would the dielectric change how the charge is on the sphere.
 

FAQ: How does the dielectric affect the charge distribution on a charged sphere?

1. What is bound surface charge density?

Bound surface charge density is a measure of the amount of electric charge that is present on the surface of a material due to the presence of bound charges, such as ions or polar molecules.

2. How is bound surface charge density different from free surface charge density?

Bound surface charge density is caused by charges that are permanently attached to the surface of a material, while free surface charge density is caused by charges that are able to move freely on the surface.

3. What factors affect the bound surface charge density of a material?

The bound surface charge density of a material is affected by the type and concentration of bound charges present, as well as the material's surface area and surface properties.

4. How is bound surface charge density measured?

Bound surface charge density can be measured using various techniques, such as surface potential measurements, surface charge density measurements, and surface conductivity measurements.

5. Why is bound surface charge density important in materials science?

Bound surface charge density plays a crucial role in determining the surface properties and behavior of materials, such as their adhesion, wetting, and corrosion resistance. It is also important in understanding and controlling the interactions between materials and their surrounding environment.

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