A long straight wire is held vertically. The current in the wire flows upwards.
A plotting compass is placed on a horizontal card, directly east of the wire.
Ignore the Earth's magnetic field.
In which direction does the north pole of the compass needle point?
East
West
South
North
44 exam-style questions on OCR GCSE Physics 4.1 Magnets and magnetic fields, covering 4.1.1 Magnetic poles, attraction and repulsion, 4.1.2 Permanent and induced magnets, 4.1.3 The magnetic field of a magnet, 4.1.4 Compasses and the Earth's magnetic field, 4.1.5 The magnetic field around a current-carrying wire, 4.1.6 Field strength, current and distance, and 4.1.7 Solenoids and electromagnets. Each one has a worked solution and a mark scheme showing where the marks go.