Standard off-the-shelf transformers and inductors were described in Chapter ... when the magnetising force is removed. A hard magnetic core is like a permanent magnet; it has high remnance (magnetic ...

In that case, wind-powered induction heating might be just what ... the magnets create a rapidly flipping magnetic field. To test this setup, [Tim] used a scrap of copper pipe with a bit of ...

A magnetic field is invisible ... different positions in the magnetic field, marking the needle direction each time join the points to show the field lines The needle of a plotting compass ...

How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the ... align themselves along the lines of magnetic force ...