# A Hall sample is made of p-type silicon doped with 1019 borons/cm². Its resistivity is 0.009...

###### Question:

A Hall sample is made of p-type silicon doped with 1019 borons/cm². Its resistivity is 0.009 ohm-cm. The sample has a cross section of 0.2mmx2mm and a length of 50mm. A voltage of 10V is applied in the longitudinal (length) direction. The effective mass of holes is 2 of electron rest mass. Temperature is 300K. Calculate: a. The Hall coefficient, b. Hole mobility, c. Longitudinal electrical field, d. Drift velocity, e. Mean free time, f. The Hall voltage across 2mm width with a magnetic flux density (B) of 0.5 tesla applied in the 0.2mm direction.

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