Ncert Exercises & Solutions

Refer to the arrangement of charges in the figure and a Gaussian surface of a radius \(R\) with \(Q\) at the centre. Then:

(a)	total flux through the surface of the sphere is \(\frac{-Q}{\varepsilon_0}.\)
(b)	field on the surface of the sphere is \(\frac{-Q}{4\pi \varepsilon_0 R^2}.\)
(c)	flux through the surface of the sphere due to \(5Q\) is zero.
(d)	field on the surface of the sphere due to \(-2Q\) is the same everywhere.

Choose the correct statement(s):

1.	(a) and (d)	2.	(a) and (c)
3.	(b) and (d)	4.	(c) and (d)