CH19 HW1 - 1. 1/1 points All Submissions Notes 2. 1/1...

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Unformatted text preview: 1. 1/1 points All Submissions Notes 2. 1/1 points All Submissions Notes Web Assign Ch19 HW1 S2010 (Homework) Kiyaniah Tilghman PY 208, section 003M, Spring 2010 Instructor: Keith Weninger Current Score : 15 / 15 Due : Thursday, February 25, 2010 12:30 PM EST About this Assignment Extension Requests Question Points 1 2 3 4 5 6 7 8 1 1 2 2 2 1 4 2 Total 15/15 (100.0%) Description Current in circuits; Electric field and current Instructions Reading: Sec. 18.5 and 19.1-19.3 The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Question: MI3 18.X.001 If 2.2 10 16 electrons enter a light bulb in 3 milliseconds, what is the magnitude of the electron current at that point in the circuit? 7.33e18 7.33e+18 electrons/second Question: MI3 18.X.002 If the electron current at a particular location in a circuit is 8 10 18 electrons/s, how many electrons pass that point in 6 minutes? 2.88e21 2.88e+21 electrons 3. 2/2 points All Submissions Notes 4. 2/2 points All Submissions Notes 5. 2/2 points All Submissions Notes Question: MI3 18.X.008 The density of mobile electrons in copper metal is 8.4 10 28 m-3 . Suppose that i = 6.6 10 18 electrons/s are drifting through a copper wire. (This is a typical value for a simple circuit.) Theelectrons/s are drifting through a copper wire....
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CH19 HW1 - 1. 1/1 points All Submissions Notes 2. 1/1...

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