Physics 5054 · O Level · Electromagnetic induction

Electromagnetic induction — practice question

A magnet passes through a coil of wire at constant speed. The coil is connected to an oscilloscope. The diagram shows the trace formed on the screen. The experiment is then altered and a different trace is produced. Which statement explains why the new trace differs from the original trace?

  • AThe coil is longer and the other pole of the magnet enters the coil first.
  • BThe coil is longer and the same pole of the magnet enters the coil first.
  • CThe coil is shorter and the other pole of the magnet enters the coil first.
  • DThe coil is shorter and the same pole of the magnet enters the coil first.

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