Fig. 11.1 gives a diagram of an electrical device, but the drawing is incomplete. When the coil is connected to a d.c. power supply, it turns in a magnetic field.
(a(i))[1]
Explain what is meant by the term d.c.
(a(ii))[2]
Complete the diagram in Fig. 11.1 by adding the symbols for two cells in series and a switch so that a circuit is formed.
(b(i))[1]
State the name of the electrical device illustrated in Fig. 11.1.
(b(ii))[2]
State two modifications to the electrical device that will make the coil in the device rotate faster.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The current flows only in one direction.” …