Refer to the arrangement of charges in Fig. 1.6 and a Gaussian surface of radius R with Q at the centre. Then
(a) total flux through the surface of the sphere is -Q/ɛo.
(b) field on the surface of the sphere is -Q/4πɛoR2.
(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.
