(a(i))[2]
On Fig. 7.1, draw an arrow to show the direction of the force on a negative point charge placed at point Y.
(a(ii))[2]
State what is located at point X to create the field pattern shown in Fig. 7.1.
(b)[2]
State what charge transfers take place during this process.
(c)[2]
Explain how the structure of an electrical conductor is different from that of an electrical insulator.