Germanium is a semiconducting metal with a resistivity of 0.460 ohm x m. (a) Determine the current per unit area through a 5.00 - V germanium junction with a length of 2.00 mm. (b) Find the current through the junction if its cross - sectional area is 2.00 x 10^-5 m^2.
(a) Resistance is given as where is resistivity, l is the length and A is area.
According to data provided in question, resistance is,
From Ohm' Law, current s given by
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