Similarly, it is negative when electrons are more than holes. The Hall voltage represented as VH is given by the formula: I is the current flowing through the sensor, n is the number of charge carriers per unit volume, The Hall Coefficient RH is mathematically expressed as. The output signal from a Hall effect sensor is the function of magnetic field density around the device. The polarity of this Hall voltage indicates the type of material the sample is made of; if it is positive, the material is P-type, and if it is negative, the material is N-type. Hall Effect was discovered by Edwin Herbert Hall in 1879. The charges that are flowing can either be Negative charged – Electrons ‘e- ‘/ Positive charged – Holes ‘+’. This principle is observed in the charges involved in the electromagnetic fields. Active 4 years, 5 months ago. 20.9 and 20.10 the resistance R is given by: R = V I = El neA„E R = l neA„ (20.11) The Lorentz force is given by The Hall effect is illustrated in figure 1 for a bar-shaped sample in which charge is carried by elec… This equation, which applies to a current-carrying plate, tells us that the Hall voltage is related to the amplitude of current flowing through the conductor (I), the magnetic field strength (B), the elementary electron charge (e), the number of electrons per unit volume (ρ), and the thickness of the plate (t). The Hall Coefficient R H is mathematically expressed as $$R_H=\frac{E}{jB}$$ Calculate the Hall voltage ΔVHall for the case of a ribbon of copper 2 mm high and 0.3 mm deep, carrying a current of 17 amperes in a magnetic field of 3 tesla. Hall effect formula enables one to determine whether a material serves as a semiconductor or an insulator. For the measurement of direct current, Hall effect Tong Tester is used. So the hall voltage produced in the n-type semiconductor is negative. Where one end is connected from the positive end of a battery to one end of the plate and another end is connected from the negative end of a battery to … 3, can also be used for the Hall measurement. Hall voltage (V H) is developed along y-axis with electric field intensity E H. Hall effect is the production of voltage across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current The above figure shows a conductor placed in a magnetic field (B) along the z-axis. window.jQuery || document.write('