A uniform copper wire of length ${\rm{1}}\,\,{\rm{m}}$ and cross-section area $5\,\, \times \,\,{10^{ - 7}}\,\,{{\rm{m}}^2}$ carries a current of ${\rm{1 }}\,{\rm{A}}\,$. Assuming that there are $8\,\, \times \,\,{10^{28}}$ free electron ${{\rm{m}}^{ - 3}}$ in copper, how long will an electron take to drift from one end of the wire to the other?Failed to load question data. Please try again later.
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