GCSE Physics

Motor Effect - rolling bar

Let's apply Fleming's Left Hand Rule to predict the movement of a metal bar resting on two long, parallel conductors connected to a battery.
brass bar resting on two parallel brass conductors, connected to a battery and between the poles of a horseshoe magnet
  1. Move your mouse over the image: it will change to show the direction of the current.
  2. Move the mouse off and we reveal the magnetic field.
  3. Now - use the left hand rule to work out the direction of the force on the rod!

When you've finished twising your left hand and arm into a mess, click here to see the answer!

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