An assembly supports a coil so that it can be easily slide up and down a support tube and locked in position. When a small cylindrical magnet (supplied) is dropped down the tube, the resultant induced EMF can be monitored with an oscilloscope or data-logger. The amplitude varies with speed and this provides the basis for a student investigation into the relationship between distance fallen by the magnet and the output amplitude. At post-16, equations of motion can be used to determine the speed and if a PC storage oscilloscope is available, there is scope for investigation of output characteristics.

• Number of Turns: 100 turns
• Dimensions: (H)50mm x (D)60mm x (L)380mm