Jee Main
Capacitor
JEE Main 2022 (Online) 25th July Evening Shift
MCQ+4 / -12022
Capacitance of an isolated conducting sphere of radius R1 becomes n times when it is enclosed by a concentric conducting sphere of radius R2 connected to earth. The ratio of their radii \(\left( {{{{R_2}} \over {{R_1}}}} \right)\) is :