Hall Effect

mansion Effect The dorm room event was discovered in 1879 by Edwin Herbert vestibule at Johns Hopkins University in Baltimore, Maryland. Edwin discovered the Hall effect while working on his doctoral dissertation in Physics. Halls experiments consisted of exposing thin metal(prenominal) thrust on a glass plate and tapping off the gold leaf at different points d give birth the length of the natural. He later on expanded this to various a nonher(prenominal) conducting hooeys but archaean on used only gold leaf. The effect that Hall achieved is a potential difference on turnabout sides of the natural called a Hall voltage. This voltage is created by applying a magnetized field of ope symmetryns rectangular to the solid being tested. The ratio of the voltage created to the bar of circulating(prenominal) produced is called the Hall resistance and is a characteristic of the material being used. Each material has its own Hall resistance. The Hall effect occurs due to the nature of the current in a film director or semiconducting material and allows a person to plant whether the charge carriers in the material are positively or negatively charged. Furthermore, the number of such(prenominal) carriers per unit volume of the conductor can also be measured accurately.

When a magnetic field is present that is not parallel to the education of inquiry of the abject charges these charges are shell to a force called the Lorentz force. When this magnetic field is absent or in parallel with the direction of motion the charges follow orderly paths. If the magnetic field is normal t o the direction of motion the paths of the m! oving charges is curved. In this explanation it is anticipate there are no impurities and the only charge carriers are electrons. As the electrons flow through the material on this curved path due to the perpendicular magnetic field the charges write down to build up along one side of the material. As the electrons build up on one side of the material an equal and opposite force builds up on the other side. The result is a charge distribution that is perpendicular...If you want to lose a to the full essay, order it on our website: OrderCustomPaper.com

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