JEE Advanced 2008 Physics question

STATEMENT-1 : For practical purposes, the earth is used as a reference at zero potential in electrical circuits. and STATEMENT-2 : The electrical potential of a sphere of radius R with charge Q uniformly distributed on the surface is given by .

(A)STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is a correct explanation for STATEMENT-1Correct
(B)STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is NOT a correct explanation for STATEMENT-1
(C)STATEMENT-1 is True, STATEMENT-2 is False
(D)STATEMENT-1 is False, STATEMENT-2 is True

Answer: (A)

Solution

Statement-2 is the standard result for a charged spherical shell: true. Because the earth's radius R is enormous, adding or removing the charges involved in ordinary circuits changes its

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-037638