A copper wire has a cross-sectional area of 0.40 cm". It carries a constant current of 3.50 A. If the electron density in copper is n-8.49x10 electrons/m and the electronic charge is e--1.6x10 the electron drift speed (in m/s)? 19 C, what is -7 1. 09.2 x 10 2. 02.8 x 10 3. 04.6 x 10 -6 4. 06.4 x 10 5. 08.3 x 10
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