A conductor carries conventional current out of the page and experiences a force to the left. The magnetic field is perpendicular to the current. The magnet is then turned so its north and south poles exchange positions, while the current stays unchanged. Which gives the original field direction and the new force direction?
Original field downwards; new force rightwards
Original field upwards; new force rightwards
Original field upwards; new force leftwards
Original field downwards; new force leftwards
86 exam-style questions on Edexcel GCSE Physics 12.3 The motor effect, covering 12.3.1 The motor effect, 12.3.2 Fleming's left-hand rule, 12.3.3 Force on a conductor, and 12.3.4 Electric motors. Each one has a worked solution and a mark scheme showing where the marks go.