In a bicycle speedometer a attached to the spokes of the

Last updated: 6/26/2023

In a bicycle speedometer a attached to the spokes of the wheel and a coil is attached to the frame so that the north pole of the magnet moves past it once for every revolution of the wheel As the magnet moves past the coil a pulse of current is induced in the coil A computer then measures the time between pulses and computes the bicycle s speed Figure shows the magnet about to move past the coil Which of the graphs shows the resulting current pulse Take counterclockwise in figure current to be positive Magnet north pole facing the viewer Plane of Coil is nearer to you 1 v A A N 4 3 2