is it possible to make a home built hall effect sensor?

im from the philippines, and i cant seem to find a hall effect sensor anywhere here, does anyone know how to build their own hall effect sensor?

jeff-o7 years ago
Where have you looked for one?  Just in local shops, or online, too?

Hall effect sensors can often be found in consumer products, do a google search to find out what you should look for.
Not really possible. Of course HALL managed to measure the effect in a metal, and not in a semiconductor, but only a semiconductor based device is really practical.