A sphere has an unknown amount of charge distributed uniformly at a distance of 0.56cm from the center of the of the sphere, the electric feld point directly toward centre of the phone which has a magnitude of 1.6x10NC how much charge is on the sphere.

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k