Physics · GCSE · Electricity & Magnetism

The motor effect and Fleming's left-hand rule

gcse-phys-6-7-2-2Free3:49Heddy Score 2 of 7, below the standard

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What you need to know

  • A wire carrying a current in a magnetic field feels a force: the motor effect.
  • Fleming's left-hand rule gives the direction of the force from the field and the current.
  • The force is greatest when the wire is at right angles to the field and zero when it is parallel.
  • Force equals magnetic flux density times current times length (higher tier).

In this clip

Heddy Score2/7, Below the standard
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · not judged yet. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
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Our own students' answers. These are what move ★7 Proven.
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Why we picked it

Freesciencelessons lesson on the motor effect and Fleming's left-hand rule; GCSE, includes the higher-tier force equation.