A sphere has a uniform charge density distributed throughout its interior. What effect does doubling the radius of the sphere (while maintaining the same charge density) have on the electric field at a point outside the enlarged sphere?
A.
The field remains the same.
B.
The field increases by a factor of 2 .
C.
The field increases by a factor of 4 .
D.
The field increases by a factor of 8 .
E.
The field increases by a factor of 16 .
Exam No：AP Physics C(EM) Practice Test Year：2024 Question No：19
Answer:
D
Knowledge points:
1.5 Electrostatics: Fields and Potentials of Other Charge Distributions
Solution:
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