Physics

Problem

Three identical small conducting spheres

P,\,Q,\,

and

R

carry initial charges of

+3\,\mu\mathrm{C}

-5\,\mu\mathrm{C}

, and

0\,\mu\mathrm{C}

respectively. First, spheres

P

and

Q

are connected by a wire and then separated. Next, spheres

Q

and

R

are connected and separated. Finally, spheres

R

and

P

are connected and separated. What is the final charge on sphere

P

? a)

-1.00\,\mu\mathrm{C}

-0.75\,\mu\mathrm{C}

+0.75\,\mu\mathrm{C}

-0.67\,\mu\mathrm{C}