This is called electromagnetic ... the magnetic field) Increasing the number of turns on the coil of wire The image below illustrates a simple experiment to demonstrate electromagnetic induction.

Note that this magnetic field opposes the original change. For example, if a magnet is moved into a coil of wire, the induced magnetic field tends to repel the magnet back out of the coil.

WePower will demo several reference designs for its Gemns energy harvesting generators in IoT applications at CES 2025.