# The Corbino effect

How exactly does the Corbino effect take place? Are there any mathematical expressions behind its proof? I read from Wikipedia that logarithmic spheres are formed. How is this possible mathematically?

Please explain with basic maths as I am not yet an expert in mathematics.

The Corbino effect is the same phenomenon as the homopolar generator. In both cases in a rotating conductive material and under the influence of an external magnetic field electrons get deflected.

It's the Lorentz force $\vec F = q \vec v \times \vec B$ inside conductors. Wikipedia about the Hall effect:

The Hall effect is due to the nature of the current in a conductor. Current consists of the movement of many small charge carriers, typically electrons, holes, ions... When a magnetic field is present, these charges experience a force, called the Lorentz force.

Compairing the sketches from both the Corbino effect (first sketch) and homopolar generator (second sketch) one see the congruence:

• Any figure depicting it? And any kind of senseful formula? Commented Apr 17, 2017 at 4:06
• @AaronJohnSabu It's better now? Commented Apr 17, 2017 at 5:42
• Probably yes... Commented Apr 17, 2017 at 6:28