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Consider a wire having current $10\,A$ having area of crossection $1\,cm^2$. If number of electrons per unit volume is $9 \times 10^{28}\, m^{-3}$. Find the drift velocity of electrons
  • A$6.94 \times {10^{ - 6}}\,m/s$
  • B$1.94 \times {10^{ - 3}}\,m/s$
  • C$5.94 \times {10^{ - 2}}\,m/s$
  • D$2.94 \times {10^{ - 4}}\,m/s$
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