In short, this ferrite core is a filter that ensures that other electronic devices in the vicinity of your laptop are not disturbed by electromagnetic interferences. But of course, you need some ...

This magnetic read-only memory (ROM), contrary to ordinary coincident-current magnetic core memories (used for RAM), uses the ferrite cores as transformers. If you look at the picture above ...

Ferrite beads (L1 in the photo) filter high frequency power supply noise by converting it into a tiny amount of heat. Power supply noise can cause various problems for many parts, especially in ...