(a(i))[2]
An electric field exists around sphere S. On Fig. 5.1, draw four field lines to represent the field pattern and show the field direction with arrows on the lines.
(a(ii))[1]
State the direction in which the electric-field force acts on the negatively charged particle at X around sphere S.
(a(iii))[2]
Describe the motion of the small negatively charged particle due to the electric field around sphere S.
(b(i))[1]
Explain why the paint particles spread out after leaving the nozzle.
(b(ii))[2]
Suggest and explain one advantage to using charged paint from a spray gun to paint sphere S.