1.1 × 1020 electrons flow through a cross section of a 2.4-mm-diameter iron wire in 6.0 s. Part A What is the electron drift speed? Express your answer in micrometers per second. ▸ View Available Hint(s) V ΕΠΙ ΑΣΦ V-7.90 Submit Previous Answers × Incorrect; Try Again ? μm/s

1.1 × 1020 electrons flow through a cross section of a 2.4-mm-diameter iron wire in 6.0 s. Part A What is the electron drift speed? Express your answer in micrometers per second. ▸ View Available Hint(s) V ΕΠΙ ΑΣΦ V-7.90 Submit Previous Answers × Incorrect; Try Again ? μm/s

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 3P: The quantity of charge q (in coulombs) that has passed through a surface of area 2.00 cm2 varies...

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The quantity of charge q (in coulombs) that has passed through a surface of area 2.00 cm2 varies with time according to the equation q = 4t3 + 5t + 6, where t is in seconds. (a) What is the instantaneous current through the surface at t = 1.00 s? (b) What is the value of the current density?
A high-energy proton accelerator produces a proton beam with a radius of r - 0,90 mm. The beam current is I=9.00A and is constant. The charge density ofthe beam is n = 6.001011 protons per cubic meter, (a)What is the current density of the beam? (b) What is the drift velocity of the beam? (c) How much time does it take for 1.0010 m protons to be emitted by the accelerator?
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