1-d, 2-b, 3-d (equipotential means the same potential at each point) 4-a, 5-e (electric field has not only value but also a direction) 6-c (potential is an additive number), 7-d, 8-e (total charge q=I*t= 36 C, number of electrons is q/charge of one electron) 9-e, 10-c or d (right hand rule applied to a charged object without regard to the sign of its charge gives answer c, to take account of the charge the current flows oppostie direction then electron movements - giving answer d)