Question

What is the range of Hall voltage?

Answer 1

The Hall voltage typically ranges from microvolts (µV) to millivolts (mV), depending on various factors such as the material's properties, the current flowing through the conductor, and the magnetic field strength.

Here’s a simple explanation:

1. Hall Effect occurs when a current flows through a conductor or semiconductor and a magnetic field is applied perpendicular to the current. This creates a voltage (Hall voltage) across the conductor, perpendicular to both the current and the magnetic field.
   

1. The magnitude of the Hall voltage depends on:
   

  1. The strength of the magnetic field (B): Stronger magnetic fields lead to higher Hall voltages.
  2. The current (I): A higher current increases the Hall voltage.
  3. The carrier concentration: Materials with lower carrier concentrations (such as semiconductors) tend to show higher Hall voltages.

In typical experimental setups:

1. For semiconductors, the Hall voltage can be on the order of microvolts (µV).
   

1. For metals, the Hall voltage is generally much smaller, also in the microvolt range, but may be slightly higher depending on the material and experimental setup.
   

For practical purposes, the Hall voltage is usually in the range of 0.1 µV to several mV.