Figure 1: Cross-sectional view of a nanopillar spin-valve device. For an idealized model in which the free-layer magnetization behaves as a single domain, the Néel–Brown prediction for the activation ...

4.9.1 Torque on a rectangular current loop in a uniform magnetic field 4.9.2 Circular current loop as a magnetic dipole Pragya Sagar has completed her graduation in Journalism, Psychology and English.

Back when I was a kid, we had these things called compasses. It's just a magnetic needle inside a case that is free to rotate. Since a magnetic field can exert a torque on another magnet, this needle ...