(a(i))[2]
On Fig. 12.1, complete the circuit diagram by inserting a battery and a switch in series with the coil.
(a(ii))[3]
State three ways to increase the turning effect on the coil.
(b(i))[3]
Describe an experiment that uses this equipment to show electromagnetic induction. You may draw a diagram to illustrate the arrangement.
(b(ii))[2]
Name two further factors that also affect the size of the induced e.m.f.