A student investigates the magnetic effect of a current in a solenoid with a core. The student makes four different solenoids, each carrying the same electrical current: Solenoid P (50 turns, plastic core), Solenoid Q (50 turns, iron core), Solenoid R (150 turns, plastic core), and Solenoid S (150 turns, iron core).
Which solenoid will have the strongest magnetic field?
Practise OCR GCSE Physics Magnets and magnetic fields with exam-style questions for Foundation and Higher tier. 45 questions, matched to the OCR GCSE Physics (J249) specification and written in Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.