Hall Effect Presentation
| Introduction to Hall Effect | ||
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| • The Hall effect refers to the generation of a voltage perpendicular to the flow of electric current in a conductor or semiconductor material. | ||
| • It was discovered by Edwin Hall in 1879 and has since found numerous applications in various fields of science and technology. | ||
| • The Hall effect is caused by the interaction between moving charges and an external magnetic field. | ||
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| Principle and Mechanism | ||
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| • When an electric current flows through a conductor or semiconductor in the presence of a magnetic field, a force is exerted on the moving charges. | ||
| • This force causes the charges to accumulate on one side of the conductor, creating an electric field that opposes further charge accumulation. | ||
| • The resulting voltage perpendicular to both the current and magnetic field directions is known as the Hall voltage. | ||
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| Applications | ||
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| • The Hall effect is widely used in sensing applications, such as in Hall effect sensors for position, speed, and current measurements. | ||
| • It is also utilized in magnetic field measurements and magnetometers, which find applications in navigation systems, magnetic imaging, and non-destructive testing. | ||
| • Hall effect devices are employed in electronic devices like computer hard drives, where they are used to control the precise positioning of read-write heads. Note: The above presentation is a concise overview of the Hall effect and is intended for brevity. For more detailed information, please consult appropriate scientific literature or additional resources. | ||
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