(a)[3]
Calculate the potential difference across the secondary coil.
(b)[1]
State a suitable substance for the transformer core.
(c)[2]
Describe two benefits of high-voltage transmission.
Physics 0625 · IGCSE · Electromagnetic effects
Electromagnetic effects — practice question
Fig. 11.1 shows a transformer. Its primary coil has 300 turns, while its secondary coil has 30 turns. The input voltage is $230\,\text{V}$ a.c.