The motor effect
The motor effect
An electric motor uses the force on a current-carrying conductor in a magnetic field to produce rotation. A simple motor has a coil between the poles of a magnet, mounted on a horizontal axle. The coil is connected to a split-ring commutator, which rotates with the coil, and stationary brushes, which provide electrical contact with a DC supply.
Step-by-step lessons covering AQA GCSE Physics 7.2.3 Electric motors (HT only) for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.