Practise tracing conventional current from positive to negative and free-electron flow from negative to positive through cells, lamps, resistors and meters.
Fig. 9.1 shows a simple direct current (d.c.) electric motor. The coil rotates about the axis when there is a current in the coil. The coil is connected to the rest of the circuit by the brushes.
Fig. 9.1
On Fig. 9.1, draw an arrow to show the direction in which electrons flow through the coil.
Explain why the electrons flow in the direction you have shown in (a)(ii).