A neutral conducting sphere of radius is connected by a conducting wire to a neutral…

PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Conductors and Capacitors · Conductors and Capacitors

Problem

A neutral conducting sphere

L

of radius

6\,\text{cm}

is connected by a conducting wire to a neutral conducting sphere

S

of radius

3\,\text{cm}

. A positively charged glass rod is brought near sphere

S

(but does not touch). While the rod remains nearby, the wire is removed. After the rod is taken away, what is the ratio

|q_L|/|q_S|

of the magnitudes of the charges on the two spheres? (a)

2:1

(b)

1:1

(c)

1:2

(d)

4:1