Hall-Effect : Determination of carrier concentration
What is the typical carrier concentration of a metal?
What is the typical carrier concentration of Semiconductor?
What is the magnetic field strength for a pole distance of 1 cm and 200mA current in a typical Helmholtz set up?
It is interesting to note that there are four wires going through the probe. What could be the reason for using 4 wires instead of two ?
What do you think about the nature of current in probe and in the electromagnet