[Tom] doesn’t much like breadboarding. He prefers to wire up prototypes with perfboard and solder point-to-point with enameled magnet wire. That may sound troublesome to some of you, but [Tom ...

Electric guitar pickups are simple devices – just a magnet for each string wrapped in thousands of turns of wire about as thin ... to measure the magnetic flux and polarity of the pole pieces.

To calculate the force on a wire carrying a current at right angles to a magnetic field, use the equation: 2 A flows through a 50 cm wire. Calculate the force acting on the wire when it is placed ...