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The motor effect

The motor effect

Current-carrying wire to the right in a magnetic field into the page with upward force labelled A magnetic field can exert a force on a current-carrying wire, a phenomenon known as the motor effect. In diagrams, crosses indicate that the field is directed into the page, while dots indicate the field is directed out of the page.

Magnetic forces Lesson

  1. A Level
  2. /Physics
  3. /Magnetic forces

Step-by-step lessons on Edexcel A Level Physics Magnetic forces. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons