A straight vertical wire carries a steady electric current. State the shape of the magnetic field lines in a horizontal plane around this current-carrying wire.
A student is provided with the following equipment:
Describe how the student can use this equipment to generate and detect an induced electromotive force (e.m.f.).
State two changes to the apparatus or the procedure that would generate a larger maximum induced e.m.f.
The student then connects a low-frequency alternating current (a.c.) generator in series with a lamp and the centre-zero microammeter. The pointer of the microammeter is observed to swing from side to side repeatedly.
Explain why the pointer moves in this way.
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.