(a(i))[2]
For point X, determine its speed.
(a(ii))[2]
For point X, determine the centripetal acceleration.
(b(i))[2]
A uniform magnetic field of flux density $0.18\,\text{T}$ is directed into the plane of the page. State Lenz’s law of electromagnetic induction.
(b(ii))[1]
Show that the time for point X to make one complete revolution is $45\,\text{ms}$.
(b(iii))[3]
Calculate the magnetic flux cut by spoke AX during one complete revolution of the wheel. Include a unit in your answer.
(b(iv))[2]
Determine the magnitude of the electromotive force (e.m.f.) induced across spoke AX.
(b(v))[1]
Use Lenz’s law to explain whether the potential is higher at end A or end X of the spoke.