A horizontal copper rod is suspended from a ceiling by two vertical conducting springs in a region of a uniform magnetic field, as shown in the diagram below.
A current I I\,I is passed through the rod from West to East. Which direction does the magnetic force act on the copper rod?
Vertically downwards
Vertically upwards
Horizontally towards the North
Horizontally towards the South
Uses of magnetism Questions
Practise OCR GCSE Physics Uses of magnetism with exam-style questions for Foundation and Higher tier. 35 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.