Spec J249
Revise OCR GCSE Physics 4.2.8 Transformer turns ratio with the question bank and revision guides.
explain how the ratio of the potential differences across the two coils in a transformer depends on the ratio of the numbers of turns in each
Papers
Past papers, predicted papers and mini tests
Question bank
Practise exam-style questions for this topic
Daily Greens
A quick worksheet each day that targets your weaknesses
Revision Guides
Study notes with worked examples
Teach Genie
Review a topic by teaching it to Baby Genie
Exam builder
Build a custom mock from exam-style questions
Paper marker
Upload a completed paper and get it AI marked
Grade calculator
Enter your marks to see your predicted grade
