Hi all,

 

We've just been studying the Hall Effect and it was noted that magnetic field detectors which use the Hall Effect are based on semiconductors. Is there any specific reason for this?

 

All I can seem to find is that the voltage measured for semiconductors is much larger, and from the Hall Effect equation V(H) = IB/net this would indicate that a larger B field could be measured...

i can't think of any reason a semiconductor would have greater hall effect properties than any other conductor.

it's just that you can costruct a hall effect device using the same equipment in the same layer as the operating circuitry. pure convenience that's all.

Write down all the things that the Hall Effect relies on, then think about the material properties of semiconductors.