(a(i))[1]
On Fig. 8.1, mark the north and south poles of the magnet with the letters N and S.
(a(ii))[3]
State and explain what happens to the soft-iron bar.
(b(i))[2]
Explain how friction between the cloth and the rod makes the rod positively charged. Use your ideas about charge transfer.
(b(ii))[1]
State two more materials that are electrical conductors.