Calculate the average drift speed of electronstraveling through a copper wire with a cross-sectional area of 70 mm? when carrying acurrent of 90 A (values similar to those for theelectric wire to your study lamp). Assumeone electron per atom of copper contributesto the current. The atomic mass of copperis 63.5 g/mol and its density is 8.93 g/cm³.Avogadro's number is 6.022 x 1023 and thefundamental charge is 1.602 x 10-19 C.Answer in units of m/s.

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