Physics · Oct / Nov 2023 · Paper 11 · Question 29

A magnet moves at constant speed through a coil of wire. The coil is connected to an oscilloscope. The diagram shows the trace produced on the screen. [diagram of oscilloscope trace] The experiment is changed and a new trace is produced. [diagram of new oscilloscope trace] Which statement explains why the new trace is different from the original trace?

1. AThe coil is longer and the other pole of the magnet enters the coil first.
2. BThe coil is longer and the same pole of the magnet enters the coil first.
3. CThe coil is shorter and the other pole of the magnet enters the coil first.
4. DThe coil is shorter and the same pole of the magnet enters the coil first.

As printed in the paper