(a)[1]
State the type of voltage induced in the coil. Tick (✓) one box from the following: alternating, digital, direct.
(b)[2]
State two methods of increasing the voltage induced in the coil.
Physics 0625 · IGCSE · Electromagnetic effects
Electromagnetic effects — practice question
A student uses a coil together with a magnet on a spring to produce a varying electromotive force (e.m.f.). He hangs the magnet above a coil, as illustrated in Fig. 11.1.