In the figure a nonconducting spherical shell of inner radius a = 2.14 cm and outer radius b = 2.49 cm has (within its thickness) a positive volume charge density p = A/r, where A is a constant and r is the distance from the center of the shell. In addition, a small ball of charge q = 45.2 fC is located at that center. What value should A have if the electric field in the shell (a ≤ r ≤ b) is to be uniform?

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In the figure a nonconducting spherical shell of inner radius a = 2.14 cm and outer radius b = 2.49 cm has (within its thickness) a positive volume charge density p =
A/r, where A is a constant and r is the distance from the center of the shell. In addition, a small ball of charge q = 45.2 fC is located at that center. What value should
A have if the electric field in the shell (a ≤ r ≤ b) is to be uniform?
Number
1.8E-11
Units
C/m^2
9
Transcribed Image Text:In the figure a nonconducting spherical shell of inner radius a = 2.14 cm and outer radius b = 2.49 cm has (within its thickness) a positive volume charge density p = A/r, where A is a constant and r is the distance from the center of the shell. In addition, a small ball of charge q = 45.2 fC is located at that center. What value should A have if the electric field in the shell (a ≤ r ≤ b) is to be uniform? Number 1.8E-11 Units C/m^2 9
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