2006-10-05 01:05:41 · 3 answers · asked by antonpandan 2 in Science & Mathematics ➔ Physics
Hall effect devices are usually small (1-2mm) squares of semiconductor. They are used for detecting magnetic fields. Some times for measurement of the field strength some times as switches. There are usually several hall devices in the motors of disk drives used to comutate(turn the motor field windings on and off at the right times) the motor. wikipedia has a nice entry on the Hall effect.
2006-10-05 06:52:20 · answer #1 · answered by horse 2 · 0⤊ 0⤋
A sample (could be a wire) coonnected in an electric circuit and is placed between the two poles of a magnet, to determine the conentration and type of charge carriers.
2006-10-05 01:18:35 · answer #2 · answered by Anonymous · 0⤊ 0⤋
YES.HALL knows it first.if u want to know it u can.
2006-10-05 01:15:37 · answer #3 · answered by Naddi S 1 · 0⤊ 0⤋