(a(i))[1]
State one reason why the plug has a fuse.
(a(ii))[2]
Explain how a fuse operates.
(b)[3]
Calculate the secondary output p.d. of the transformer.
(c(i))[1]
State a suitable material for the transformer core.
(c(ii))[1]
State a suitable material for the transformer’s primary and secondary coils.
(c(iii))[1]
Explain how Fig. 9.2 indicates that it is a step-down transformer.