What is Hall effect? Derive the relation for Hall coefficient.
Answers
Hall effect derivation. Where, : Hall coefficient (RH) it is defined as the ratio between induced electric field and to the product of applied magnetic field and current density.
Question:-
What is Hall Effect? Deduce an expression for Hall coefficient.
Answer:-
Hall-effect sensors are the linear transducers that are used to measure the magnitude of the magnetic field. Working on the principle of Hall Effect, these sensors generate a Hall voltage when a magnetic field is detected, which is used to measure the magnetic flux density
Given:-
It is simple to measure the voltage difference V with a voltmeter and the current I with an ammeter. If we know the Hall coefficient, we can then easily find the magnetic field. For example, the Hall coefficient of copper is RH = 0.133 mm³/C . Say we have a copper plate of thickness t = 0.02 mm .
The Hall coefficient is defined as the ratio of the induced electric field to the product of the current density and the applied magnetic field.