Copper has 8.5 $\times$ 10²⁸ current carrying electrons per m³. A copper wire of radius 0.15 mm carries a current of 17 mA.What is the average drift velocity for the electrons? A) 2.7 $\times$ 10^-9 m/s B) 56 $\times$ 10^-6 m/s C) 18 $\times$ 10^-6 m/s D) more information is needed for this calculation

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Quizplus · Accepted Answer

The drift velocity can be calculated using the formula: v_d = I / (n * A * e), where I is the current, n is the number of electrons per unit volume, A is the cross-sectional area, and e is the charge of an electron. Substituting the given values, the drift velocity is approximately 18 x 10^-6 m/s.

Copper Has 8 ×\times× 1028 Current Carrying Electrons Per M3 ×\times× 10-9 M/s B) 56

Copper Has 8 $\times$ 10²⁸ Current Carrying Electrons Per M³ $\times$ 10^-9 M/s
B) 56