(a)[3]
On Fig. 8.1, add lines to show the form of the magnetic field around the bar magnet. Make sure there is at least one arrow to indicate the field direction.
(b)[2]
Explain how a coil of wire can be used to turn a suitable piece of metal into a bar magnet.
(c)[1]
Which of these metals could be used to make a bar magnet? Tick one box. Options: aluminium, copper, soft iron, steel.