Question

Let V and E denote the gravitational potential and gravitational field at a point. Then the match the following

Table –1	Table –2
(A) E = 0, V = 0	(P) At center of spherical shell
(B) E ≠ 0, V = 0	(Q) At center of solid sphere
(C) V ≠ 0, E = 0	(R) at centre of circular ring
(D) V ≠ 0, E ≠ 0	(S) At centre of two point masses of equal magnitude
	(T) None

Answer 1

A-T,    

B-T,   

C-P,Q,R,S,   

D-T

E = 0 always at centre of geometric figure.

(A) E = 0, V = 0 → T 

(B) E ≠ 0, V = 0 → T 

(C) V ≠ 0, E = 0 → P, Q, R, S 

(D) V ≠ 0, E ≠ 0 → T