2a) [2] 0.4 Coulombs of charge is deposited on the top of a hollow spherical silver shell with a 2.0 cm diameter. Circle all correct statements describing the electric field inside this shell, not at the center, but, offset up by 2mm above the center: Points up Points down Is zero Is 0.2 C/cm 1 cm Is 0.2 V/cm Is 0.2 V Is greater than the electric field outside the shell None of these 2b) [2] 0.4 Coulombs of charge are deposited on the top of a hollow spherical silver shell with a 2.0 cm diameter. 1) Circle all correct statements describing the electric potential inside this shell, not at the center, but offset up by 2mm above the center: Points up Points down Is zero Is 0.2 C/cm Is 0.2 V/cm Is 0.2 V Is greater than the electric potential outside the shell None of these. 2c) [2] A simple generator has a magnetic field in the vertical direction with a conducting loop rotated about the horizontal axis. The rotation of the loop produces a potential difference in the winding. If the magnetic field is reduced by a factor of 4 and the rotation rate is increased by factor of 2, the maximum potential produced changes by: (circle all correct) Increased factor of 2 decreased factor of 2 Increased factor of 4 decreased factor of 4 Increased by factor of 8 decreased factor of 8 Potential does not change