CH 18 HW 2 Part 2

# CH 18 HW 2 Part 2 - electron density but with electron...

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CH 18 HW 2 S2009 Part 2 (Homework) Current Score: 3/3 Due: Monday, March 9, 2009 12:30 PM EDT About this Assignment Extension Requests Question Points 1 3 Total 3/3 Description Addendum to CH 13 HW 2 (only one problem) The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 3/3 points All Submissions Notes Question part Points Submissions 1 2 3 1 1 1 1/3 1/3 1/3 Total 3/3 A Nichrome wire 77 cm long and 0.25 mm in diameter is connected to a 1.4 volt flashlight battery. What is the electric field inside the wire? 1.82 1.82 V/m The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile

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Unformatted text preview: electron density, but with electron mobility 3 times as large as that of Nichrome. Now what is the electric field inside the wire? 1.82 1.82 V/m The electron current in the first circuit (Nichrome) is i 1 . The electron current in the second circuit (wire with higher mobility) is i 2 . Which of the following statements is true? i 2 < i 1 Not enough information is given to compare the two currents. i 2 > i 1 i 2 = i 1 Solution or Explanation Use the loop rule. Note that the electric field inside the wire depends only on the length of the wire, and not on its mobility. Home My Assignments Extension Request...
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## This note was uploaded on 02/13/2010 for the course PY PY208 taught by Professor Kohlmyer during the Spring '09 term at N.C. A&T.

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CH 18 HW 2 Part 2 - electron density but with electron...

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