The name is absent



We examine metal lamina in which under the action of electric field Ei there is
current
i- from electrons with mean velocity 1- = const. We have constant
magnetic field with induction
B = const, whose lines are perpendicular to the
metal lamina. The vector of velocity
v- is collinear with the vector of the electron
current
i- . The vectors i- and B define electrodynamic field Emd by:

—7                       —7

(92)               Emd = v × B

The electromagnetic force FM , which acts upon N moving electrons, is:

(93)              Fm = eNv- × B

The electromagnetic force FM has the opposite direction of Emd , thus the side M
is polarized negatively, while M’ is polarized positively. Between M’ and M there
is excited potential electric field with intensity
EH . The vector EH has the
opposite direction of
Emd . The respective force FH is defined as:

7                     7

(94)              FH= eNEH

is the opposite of FM . The polarization between M’ and M is over when the two
forces
FM and FH get equal. The current is still flowing but the vector J- and the
resultant field
E are no more collinear, instead they form the Hall angle θH . Then
the Ohm’s law
J- = γE is not valid (γ is the specific conductivity of the metal).

The calculation of θH is simpler when we have monotype current carriers (in our
case electrons). If we have equilibrium

7             7

(95)                 FM+FH=0.

55



More intriguing information

1. Hemmnisse für die Vernetzungen von Wissenschaft und Wirtschaft abbauen
2. The name is absent
3. The name is absent
4. Expectation Formation and Endogenous Fluctuations in Aggregate Demand
5. A Location Game On Disjoint Circles
6. O funcionalismo de Sellars: uma pesquisa histδrica
7. The Economic Value of Basin Protection to Improve the Quality and Reliability of Potable Water Supply: Some Evidence from Ecuador
8. Eigentumsrechtliche Dezentralisierung und institutioneller Wettbewerb
9. Distortions in a multi-level co-financing system: the case of the agri-environmental programme of Saxony-Anhalt
10. The migration of unskilled youth: Is there any wage gain?