What will be net electric field at centre of uniformly charged solid hemisphere??
If you are sayin uniformly charged solid hemisphere then it depends on how the charge is dributed ... As in case of conductor charges are in surface but non conductors will have charges in the volume....... Answer will vary in both cases
It will definitely be ZERO at the CENTRE...
Does not depend on whether it is hollow or solid
If charge enclosed is zero electric field is zero
0 in both the cases ( conducting as well as non conducting)
If it is conducting then it is zero and if nonconducting then it would be difficult because we need to choose a symmetric surface to apply any of Maxwell's equations and integration will fail too because of same reason. To solve this we need an equation of shape of hemisphere in just one variable!!
It depends whether it is conducting or non conducting
0 at center