The figure shows a solid non-conducting sphere of radius 
with a total charge 
distributed uniformly throughout its volume. This sphere is surrounded by a concentric, thick non-conducting shell with an inner radius 
and an outer radius 4R. The shell has a total charge 
also distributed uniformly throughout its volume. If the net electric field at a distance 
from the center is zero, what is the ratio 
?
Text Solution
Verified by ExpertsA
the electric field due to the inner sphere at 
The charge enclosed within the Gaussian surface at 
is
The electric field due to the shell at 
is
The net electric field at 
is
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