Question

Figure shows a uniformly charged hemisphere of radius R. It has a volume charge density `rho`. If the electric field at a point 2R, above the its center is E, then what is the electric field at the point 2R below its center?

A. `rho//6varepsilon_(0)+E`
B. `rhoR//12varepsilon_(0)-E`
C. `-rhoR//6varepsilon_(0)+E`
D. `rhoR//24varepsilon_(0)+E`

Answer 1

Correct Answer - B

`rhoxx4/3piR^(3)`
`4pivarepsilon_(0)xx(2R)^(2)`