Investigating the Relationship Between the Drop Height of a Bar Magnet and the Peak Induced Electromotive Force (EMF) in a Coil

This investigation explores how the drop height of a bar magnet affects the peak electromotive force (EMF) induced in a coil. Using a data logger and differential voltage probes, the student measured peak EMF across a range of heights (5–35 cm) with five trials per increment.

The analysis employs linearization, plotting Peak EMF² against drop height to confirm a linear correlation, supporting the theoretical hypothesis that EMF² is proportional to height. The exemplar is distinguished by its rigorous uncertainty propagation and a detailed evaluation of systematic errors, such as coil misalignment and magnet chipping, alongside random errors like magnet spin, providing a comprehensive model for experimental physics analysis.