Calculate the average drift speed of electrons traveling through a copper wire with a cross- sectional area of 70 mm? when carrying a current of 90 A (values similar to those for the electric wire to your study lamp). Assume one electron per atom of copper contributes to the current. The atomic mass of copper is 63.5 g/mol and its density is 8.93 g/cm³. Avogadro's number is 6.022 x 1023 and the fundamental charge is 1.602 x 10-19 C. Answer in units of m/s.
Calculate the average drift speed of electrons traveling through a copper wire with a cross- sectional area of 70 mm? when carrying a current of 90 A (values similar to those for the electric wire to your study lamp). Assume one electron per atom of copper contributes to the current. The atomic mass of copper is 63.5 g/mol and its density is 8.93 g/cm³. Avogadro's number is 6.022 x 1023 and the fundamental charge is 1.602 x 10-19 C. Answer in units of m/s.
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Transcribed Image Text:Calculate the average drift speed of electrons
traveling through a copper wire with a cross-
sectional area of 70 mm? when carrying a
current of 90 A (values similar to those for the
electric wire to your study lamp). Assume
one electron per atom of copper contributes
to the current. The atomic mass of copper
is 63.5 g/mol and its density is 8.93 g/cm³.
Avogadro's number is 6.022 x 1023 and the
fundamental charge is 1.602 x 10-19 C.
Answer in units of m/s.
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