Lesson designed to build upon prior knowledge of magnetic fields, motors and generators. Covers mutual induction, step up & step down transformers and the transformer equation - includes practice questions for students.
Ideal for AQA GCSE (9-1) P7, Cambridge iGCSE P9 and more
Developing: Describe the construction of a basic transformer with a soft-iron core, as used for voltage transformations.
Secure: Understand that mutual induction occurs in coils that are magnetically linked.
Exceeding: Apply the equation (Vp / Vs) = (Np / Ns) to transformer problems and recall the meaning of the terms “step up” and “step down”.