(a(i))[1]
State the names of the components labelled P and Q in Fig. 7.1.
(a(ii))[2]
When the generator is delivering electrical output, P remains still and Q turns. Explain the purpose of P and Q.
(b(i))[1]
Write a letter X on the trace shown in Fig. 7.2 to show one instant when the coil is vertical.
(b(ii))[2]
Using Fig. 7.2, determine the maximum value of the e.m.f. produced by the generator.
(b(iii))[1]
Using Fig. 7.2, determine, in milliseconds, how long one revolution of the coil takes.
(b(iv))[2]
Determine the frequency of the output of the generator.