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: A metal strip 2 cm wide and 1 mm thick is placed in a magnetic field with B= 1.6 eberm2 such that thefield is normal to the surface of the strip. If a Hall voltage of 22㎶ develops across the strip when a current of 220 A is set up in the strip, find the number of conducting electrons per unit volume in the metal strip?

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J B レ. d h he Vxy 녀 2

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