Coil P is connected in series with a cell and a switch. Coil Q is placed next to coil P, and both coils are fixed in position. Coil Q can be connected to a sensitive ammeter.
Which action makes the ammeter deflect?
Closing the switch while coil Q and the ammeter form a complete circuit.
Closing the switch while one end of coil Q is disconnected from the ammeter.
Keeping the switch open while coil Q and the ammeter form a complete circuit.
Keeping the switch closed while coil Q and the ammeter form a complete circuit.
92 exam-style questions on Edexcel GCSE Physics 13.1 Inducing a current, covering 13.1.1 Producing an electric current by induction, 13.1.2 Factors affecting the induced potential difference, 13.1.3 Alternators and dynamos, and 13.1.4 Microphones and loudspeakers. Each one has a worked solution and a mark scheme showing where the marks go.