Question

A long, hollow conducting cylinder is kept coaxially inisde another long, hollow conducting cylinder of larger radius. Both the cylinders are initially electrically neutral.
A. A potential difference appears between the two cylinders when a charge density is given to the inner clylinder .
B. A potential differnce appears between the two cylineder when a uniform line charge is dept along the the axis of the cylinder
C. No potential differnce appears between the two cylinders when a uniform ine charge is kept along the when same charge density is given to both the cylinders .
D. No potential differnce appears between the two cylinders when a uniform ine charge is kept along the when same charge density is given to both the cylinders .

Answer 1

Correct Answer - A
What a charge density is given to the inner cylinder , an elerctric field is produced between the inner and out cylinders . Hence a spotential disffernce appears between the two cylinders . If a charge density si gien to the outer cylinder the dame poitnital appars on the inner and the outer cylinders, Hence in this case , there is no poinential difeernce between them .