Why must a transformer use an alternating current (AC) supply?
To produce a constant magnetic field required for electromagnetic induction.
To produce a changing electric field required for electromagnetic induction.
To produce a changing magnetic field required for electromagnetic induction.
To produce a steady magnetic field required for electromagnetic induction.
Flashcards for AQA GCSE Physics 7.3.4 Transformers (HT only), covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 22 cards, matched to the AQA GCSE Physics (8463) specification. Recall questions account for roughly 40% of marks at GCSE Physics, so these target the marks you can secure before the paper starts.
