The Hall affect is used to measure the carrierdensity of a thin sheet of electrons. When acurrent of 80.0 µA flows through the length ofthe electron sheet, which is 1.2-mm long, 0.27-mm wide and 12-nm thick, a magnetic fieldperpendicular to the sheet produces apotential difference of 0.53 mV across thewidth of the sheet. If the carrier density in theelectron sheet is 6.74 x 1025 m-3, what is themagnitude of the magnetic field?

Given, current I=80.0 μA=80.0×10-6 A Length of the sheet l=1.2 mm=1.2×10-3 m Width of the sheet…

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