A semiconductor plate with a thickness of a = 0.4 cm is placed in a magnetic field directed along a. A current I = 0.2 A flows perpendicularly to the field along the plate. In this case, a transverse potential difference U = 6 mV occurs (Hall effect). The mobility of current carriers is 0.6 m2 / V * s2, the specific resistance of the semiconductor is 10-5 Ohm * m. Determine the magnetic field induction.

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