(a)[3]
State three methods for increasing the magnitude of the e.m.f. in the coil.
(b(i))[1]
Name one material suitable for the transformer core.
(b(ii))[3]
Calculate the output voltage across the secondary coil.
Physics 0625 · IGCSE · Electromagnetic effects
Electromagnetic effects — practice question
Figure 11.1 shows a magnet together with a wire coil linked to a galvanometer.