Electric Field in a Dielectric Medium
A conducting sphere of radius R has a total charge Q uniformly distributed on its surface. The sphere is immersed in an insulating oil with a permittivity of ε = 4ε₀. How does the magnitude of the electric field at a distance 2R from the center of the sphere compare to its magnitude in a vacuum?
A
It is 1/4 times the value in vacuum
B
It is 4 times the value in vacuum
C
It is 1/16 times the value in vacuum
D
It remains unchanged
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