(a(i))[2]
Calculate the output voltage.
(a(ii))[2]
Calculate the output current.
(b(i))[1]
On Fig. 10.1, draw an arrow on the wire to indicate the current direction.
(b(ii))[2]
State and explain what happens to the wire.
(c)[1]
Suggest one reason why a d.c. motor cannot work without a split-ring commutator.