CH19-HW03-FALL2010 - 1 2/14/11 CH19-HW03-FALL2010 Rachel...

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12/14/11 CH19-HW03-FALL2010 1/4 www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3173280 Current Score : 12 / 12 Due : Sunday, October 30 2011 11:59 PM EDT 1. 2/2 points | Previous Answers MI3 19.9.X.056 Why does the brightness of a bulb not change noticeably when you use longer copper wires to connect it to the battery? Read the eBook Section 19.9 2. 5/5 points | Previous Answers MI3 19.9.X.072 A Nichrome wire 98 cm long and 0.25 mm in diameter is connected to a 1.6 volt flashlight battery. What is the electric field inside the wire? 1.632 1.63 V/m The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobility 5 times as large as that of Nichrome. Now what is the electric field inside the wire? 1.632 1.63 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? CH19-HW03-FALL2010 (Homework)
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This note was uploaded on 12/14/2011 for the course PHYS 272 taught by Professor K during the Fall '07 term at Purdue University-West Lafayette.

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CH19-HW03-FALL2010 - 1 2/14/11 CH19-HW03-FALL2010 Rachel...

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