HALL COEFFICIENT Meaning and
Definition
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The Hall coefficient is a parameter used to describe the behavior of electrical conductors when subjected to a magnetic field perpendicular to the direction of current flow. It is defined as the ratio of the transverse electric field (perpendicular to the current) to the product of the magnetic field and current density.
More specifically, the Hall coefficient represents the magnitude and sign of the electric field generated by the Hall effect. The Hall effect is a phenomenon where a voltage difference is created across a current-carrying conductor placed in a magnetic field.
The Hall coefficient is mathematically expressed as RH = VHall/(IB), where RH is the Hall coefficient, VHall is the Hall voltage, I is the current, and B is the magnetic field. Its value depends on various factors like the material's resistivity, charge carrier density, and mobility. Engineers and scientists utilize the Hall coefficient to analyze the conductivity, charge carrier type, and density in materials, and it often aids in characterizing their magnetic and electrical properties.
Determining the Hall coefficient enables the identification of electron or hole carriers, as different charge carriers will yield opposite signs for RH. Positive values indicate a predominance of positive charge carriers (holes), whereas negative values indicate negative charge carriers (electrons). Thus, the Hall coefficient serves as a crucial tool in understanding the electrical and magnetic behavior of different materials and assists in the design and optimization of electronic devices and systems.
Common Misspellings for HALL COEFFICIENT
- gall coefficient
- ball coefficient
- nall coefficient
- jall coefficient
- uall coefficient
- yall coefficient
- hzll coefficient
- hsll coefficient
- hwll coefficient
- hqll coefficient
- hakl coefficient
- hapl coefficient
- haol coefficient
- halk coefficient
- halp coefficient
- halo coefficient
- hall xoefficient
- hall voefficient
- hall foefficient
- hall doefficient
Etymology of HALL COEFFICIENT
The word "hall" in "Hall coefficient" refers to Edwin Hall, the American physicist who discovered the Hall effect in 1879. The Hall effect is the production of a voltage difference (the Hall voltage) in a current-carrying conductor perpendicular to both the current direction and the applied magnetic field. The Hall coefficient is a parameter that quantifies the strength and polarity of this effect in a material. Since Edwin Hall was the first to study and describe this phenomenon, the term "Hall coefficient" was named in his honor.
