When a bar magnet is pushed north-pole-first into a solenoid that is part of a complete circuit, an electric current is induced in the solenoid.
Which statement about the magnetic field produced by this induced current is correct?
It creates a south pole at the near end of the solenoid to attract the incoming magnet.
It creates a north pole at the near end of the solenoid to repel the incoming magnet.
It aligns in the same direction as the magnet's field to help pull the magnet in.
It produces no magnetic field of its own.
275 exam-style questions on CIE IGCSE Physics 4.5 Electromagnetic effects, covering 4.5.1a Electromagnetic induction, 4.5.1b Direction of an induced e.m.f., 4.5.2 The a.c. generator, 4.5.3a Magnetic effect of a current and its applications, 4.5.3b Strength and direction of the field around wires and solenoids, 4.5.4a Force on a current-carrying conductor, 4.5.4b Force on beams of charged particles, 4.5.5 The d.c. motor, 4.5.6a Construction and operation of a transformer, 4.5.6b Turns ratio and current in a transformer, and 4.5.6c High-voltage transmission of electricity. Each one has a worked solution and a mark scheme showing where the marks go.