An alpha particle (mass 4m4m4m, charge 2e2e2e) moves at a speed vvv perpendicular to a uniform magnetic field of flux density BBB. The radius of its circular path is RRR.
A deuteron (mass 2m2m2m, charge eee) moves at a speed 2v2v2v perpendicular to a uniform magnetic field of flux density 3B3B3B.
What is the radius of the circular path of the deuteron in terms of RRR?
43R\frac{4}{3}R34R
34R\frac{3}{4}R43R
23R\frac{2}{3}R32R
32R\frac{3}{2}R23R
66 exam-style questions on AQA A Level Physics Magnetic fields (A-level only), covering Magnetic flux density (A-level only), Moving charges in a magnetic field (A-level only), Magnetic flux and flux linkage (A-level only), Electromagnetic induction (A-level only), Alternating currents (A-level only), and The operation of a transformer (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.