A straight copper wire is moved through a uniform magnetic field, cutting the magnetic field lines at a right angle. This induces an electromotive force (e.m.f.) across the ends of the wire.
Which of the following changes would increase the magnitude of the induced e.m.f.?
Moving the wire more slowly through the magnetic field
Using a stronger magnet to increase the magnetic flux density
Replacing the copper wire with a thicker copper wire of the same length
Moving the wire parallel to the direction of the magnetic field lines
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.