Apoint charge q1 = -5.7 μc is located at the center of a thick conducting spherical shell of inner radius a = 7.4 cm and outer radius b = 11.5 cm. the conducting spherical shell has a net charge of q2 = 2.6 μc. a) draw the electric field lines inside the inner radius, between the inner and outer radius, and exterior to the conducting shell. b) what is the magnitude of the electric field at a location 8.0 cm from the point charge? c) what is the electric field at the point θ = 45o , r = 13 cm?

In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons