A conducting metal rod is placed on two parallel, horizontal rails. A uniform magnetic field is directed vertically through the region containing the rails and the rod.
When the circuit is closed, the rod accelerates uniformly from rest for 0.25 s0.25\text{ s}0.25 s before leaving the magnetic field.
You are given the following data:
Calculate the maximum possible velocity of the rod as it leaves the magnetic field.
Practise AQA GCSE Physics The motor effect with exam-style questions for Foundation and Higher tier. 25 questions covering Electromagnetism, Fleming's left-hand rule (HT only), Electric motors (HT only), and Loudspeakers (physics only) (HT only), matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 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.