View Single Post
mitocondrio
#1
Feb15-13, 09:05 AM
P: 8
How can you have a simple coil connected to a battery without having a short circuit in it? How do they make electromagnets that don't heat the battery?

Thanks :)
Phys.Org News Partner Physics news on Phys.org
Engineers develop new sensor to detect tiny individual nanoparticles
Tiny particles have big potential in debate over nuclear proliferation
Ray tracing and beyond