A hollow non-conducting sphere of inner radius a and the outer radius b is charged uniformly with volume density p. 19. find the electric field when rb to

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### Understanding Electric Fields in a Hollow Non-Conducting Sphere

A hollow non-conducting sphere with an inner radius \( a \) and outer radius \( b \) is uniformly charged with a volume density \( \rho \).

**Questions:**

19. Find the electric field when \( r < a \).

20. Find the electric field when \( a < r < b \).

21. Find the electric field when \( r > b \).

**Diagram Explanation:**

The diagram shows a cross-section of the hollow sphere:

- The sphere is drawn with a clear distinction between the inner radius \( a \) and the outer radius \( b \).
- The space between \( a \) and \( b \) is filled with positive charges, indicating a uniformly charged region.
- Arrows labeled \( a \) and \( b \) represent the inner and outer boundaries, respectively, radiating away from the center of the sphere.

This setup is crucial for understanding how the electric field behaves in different regions relative to the sphere's structure.
Transcribed Image Text:### Understanding Electric Fields in a Hollow Non-Conducting Sphere A hollow non-conducting sphere with an inner radius \( a \) and outer radius \( b \) is uniformly charged with a volume density \( \rho \). **Questions:** 19. Find the electric field when \( r < a \). 20. Find the electric field when \( a < r < b \). 21. Find the electric field when \( r > b \). **Diagram Explanation:** The diagram shows a cross-section of the hollow sphere: - The sphere is drawn with a clear distinction between the inner radius \( a \) and the outer radius \( b \). - The space between \( a \) and \( b \) is filled with positive charges, indicating a uniformly charged region. - Arrows labeled \( a \) and \( b \) represent the inner and outer boundaries, respectively, radiating away from the center of the sphere. This setup is crucial for understanding how the electric field behaves in different regions relative to the sphere's structure.
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