Answered: a) If the electron concentration…

a) If the electron concentration increase along the x-axis of a conductor as shown in equation below: n=3. 10"x +2. 10"x + 10 And D= 1.2 x 10- m²/s. Find the diffusion current at x= 5mm?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Problem 3: A 1.2 g wire has a density of 2.7 g/cm3 and a resistivity of 2.7 × 10−8 Ωm. The wire has a resistance of 15 Ω. a) How long is the wire? b) The wire is made up of atoms with valence 1 and molar mass 26.98 g/mol. What is the drift speed of the electrons when there is a voltage drop of 30 V across the wire?
A graphite lead (diameter of 0.5mm, length of 5cm) reaches a temperature of 3077K when a voltage difference of 30.7 V is applied across its ends. Find the current (in A) through the lead.
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A conductor has a cross-sectional area of 2.3x10-6 m2 and the number of free electrons per unit volume is 8.5 x1028 electron/m³. When the current is 6.2 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6×10-19 c. Select one: А. 0.20 B. 0.14 C. 0.26 D. 26.02 Е. 19.82
Subject: phy
An 18 gauge copper wire (diameter 1.02 mm) carries a current with a current density of 2.30 x 10° A/m. The density of free electrons for copper is 8.5 x 10 electrons per cubic meter. Part A Calculate the current in the wire. Express your answer with the appropriate units. I= 1,88 A Prevlous Answers v Correct Part B Calculate the magnitude of the drift velocity of electrons in the wire. Express your answer with the appropriate units. ymbols undo redo keyboard shortcuts Help va = 2.30 • 10° Submit Prevlous Answers Request Anawer Provide Feedback O Type here to search 99+ hp 12 13 米 14 IOI t5 esc 24 & 4 8.