Refer to the arrangement of charges in Fig. and a Gaussian surface of radius R with Q at the centre. Then
Options:
(a) total flux through the surface of the sphere is ` –Q/ ε_0` .
(b) field on the surface of the sphere re is `Q/(4piepsilon_0R^2`
(c) flux through the surface of sphere due to 5Q is zero.
(d) field on the surface of sphere due to –2Q is same everywhere.