A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the center [NEET 2019]
increases for 
, decreases as 
increases for 
increases for 
, increases as 
increases for 
increases for 
and for 
increases for 
and for 
Text Solution
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As the hollow sphere is uniformly charged, so the net charge will appear on the surface of the sphere.
(i) The electric field at a point outside the hollow sphere is
(ii) The electric field at the surface ( 
),
(iii) The electric field inside hollow sphere is
Thus, the electric field is zero inside the hollow sphere maximum at the surface and decreases as 
increases for 
. This can be shown graphically as
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