When a straight wire is moved downwards through a magnetic field between the poles of a U-shaped magnet, an electromotive force (e.m.f.) is induced across its ends.
Which device operates by using the motion of a conductor in a magnetic field to induce an e.m.f.?
a loudspeaker
a DC motor
an AC generator
an electromagnet
35 exam-style questions on CIE IGCSE Physics 4.5.1a Electromagnetic induction. Each one has a worked solution and a mark scheme showing where the marks go.