(a(i))[1]
Draw an arrow, labelled M, to indicate the magnetic-field direction in the gap between the magnet poles.
(a(ii))[1]
Draw an arrow, labelled F, to indicate the direction of the force on the current-carrying wire caused by the magnet's magnetic field.
(b)[1]
State what happens to the force if the direction of the current in wire PQ is reversed.
(c(i))[3]
On Fig. 9.2, sketch the magnetic-field pattern produced by the current in the wire. Show which way the field points.
(c(ii))[1]
State how this change in current affects the magnetic field.
(d)[1]
State the direction of the force on the S pole of the small magnet.