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What is the applied electric field that will impose a drift velocity equal to 0.1 per cent of the mean speed (~ 106 m/s) of a conduction el…

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What is the applied electric field that will impose a drift velocity equal to 0.1 per cent of the mean speed (~ 106 m/s) of a conduction electron in copper
[Assume drift mobility for copper as 43.4 cm2/ v-sec]
  • A23 kV/m
  • B230 kV/m
  • C2300 kV/m
  • D2.3 kV/m
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Given drift velocity is 0.1 percent of mean speed

Let V be the mean speed

V = 106 m/s

Drift velocity = 0.1% of V

= (0.001) (106)

Vd = 103 m/s

Drift velocity is related to electric field as

$({E_x} = \frac{{{v_d}}}{\mu } = \frac{{{{10}^3}\;m/s}}{{2.3 \times {{10}^5}}} = 230\;kv/m)$