1. The problem statement, all variables and given/known data Two wires are connected to a conducting sphere of radius 7.75 cm, which is initially uncharged. One wire carries a current of 3.47 μA into the sphere, and another wire carries a current of 1.26 μA out of the sphere. How long does it take to to produce an electric potential of 5.00 V at a distance of 11.6 cm away from the center of the sphere? 2. Relevant equations Csphere = 4 pi (8.85e-12) [(ra*rb)/(ra-rb)] C = Q/V V=IR P=IV Vsphere = KQ [-1/r]rarb ~(this doesn't look quite right but it's rb plugged in minus ra) 3. The attempt at a solution I found that Csphere = -2.35e-11 and that when I plugged 5.00V into the Vsphere equation I came up with Q = 1.3e8. I'm just lost as to where to go from here. I can't seem to find anything linking together the pieces I have. I tried using the C=Q/V but I just kept going in circles.