Question

Plzzz help.

Answer 1

A metallic thin spherical shell of radius a bears a positive charge Q on its surface. Using Gauss's law find the E-field intensity due to the charge at a point
(a)inside the shell, radius r<a,
(b)on the surface of the shell, radius r=a
(c)outside the shell, radius r>a

Answer 2

For (a) E is 0 right?

Answer 3

yes

Answer 4

For the other two it will b