hapter 20 Begin Date: 2/y/20 18 12:01:00 AM--Due Date : 212812018 :9.00 P L End

Question

hapter 20 Begin Date: 2/y/20 18 12:01:00 AM--Due Date : 212812018 :9.00 P L End Date: 212812018 9:00 PM (7%) Problem 3: A current of 1= 4.5 A is passing through a conductor with cross sectional area A = 3.5 × 10-4 m2. The charge carriers in the conductor, electrons, have a number density n 9 x 1027 m -3 ©theexpertta.com 50% Part (a) Express the drift velocity of electrons through. A, n, and the fundamental charge e Grade Summary Deductions Potential vd 0% 100% Submissions Attempts remaining: 8 0% per attempt) A. de tailed view END L CLEAR Submit Hint I give up! Hits: 0% deduction per hint. Hints remaining Feedhack: 0% deduction per feedback

Explanation / Answer

Current density, J = n e vd

vd = I / n a e

vd = (4.5)/(6.9 x 1027 x 3.5 x 10-4 x 1.6 x 10-19) = 1.16 x 10-5 m/s

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