Simple system to measure the Earth's magnetic field
arXiv:1009.3540 · doi:10.1119/1.3502512
Abstract
Our aim in this proposal is by using the Faraday's law of induction as a simple lecture demonstration to measure the Earth's magnetic field (B). This will also enable the students to learn about how electric power is generated from the rotational motion. Obviously the idea is not original, yet it may be attractive in the sense that no sophisticated devices are used.