A copper wire has a diameter of 2.072 mm. What magnitude current flows when the drift velocity is 1.74 mm/s? Take the density of copper to be 8.92 103 kg/m3.
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A copper wire has a diameter of 2.072 mm. What magnitude current flows when the drift velocity is 1.74 mm/s? Take the density of copper to be 8.92 103 kg/m3.
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- Calculate the drift velocity of electrons inside an aluminum wire that has a diameter of 2.053 mm (12-gauge) carrying a 20.0-A current. Assume one free electron per Al atom. The density and mass of Al is 2.70 x 10^3 kg/m^3 and 26.98 g/mol, respectively. (1 mol = 6.02 x 10^(23) atoms, charge of each carrier = 1.60 x 10^(-19) C).An iron wire with cross-section 2.6 x 10-6 m² carries current 115 A. Find the drift velocity Va, in units of milimeters per second, by assuming the existence of two carriers per iron atom. Hint: First, calculate number density n of the charge carriers. Answer:A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the drift velocity is 0.500 mm/s? (The density of free electrons in copper is 8.34 x 1028 e /m³.).) A
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- A copper wire has a circular cross section with a radius of 1.66 mm. HINT (a) If the wire carries a current of 3.18 A, find the drift speed (in m/s) of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 x 102⁹ electrons/m³.) m/s (b) For the same wire size and current, find the drift speed (in m/s) of electrons if the wire is made of aluminum with n = 2.11 x 1029 electrons/m³. m/sA copper wire has a diameter of 1.972 mm. What magnitude current flows when the drift velocity is 1.59 mm/s? Take the density of copper to be 8.92 103 kg/m3. ______ AA solid steel wire has a cross-sectional area of 8.05 x 10-6 m2 and is carrying a constant current of 15.0 A. The density of the wire is 8.05 g/cm3 and the material has a molar mass of 54.97 g/mol. Calculate the drift speed (in mm/s) of the electrons in the wire for the amount of current given. You can assume that each molecule of steel in the wire contributes one free electron of charge. Round your answer to 3 decimal places.