CH19-HW04-FALL2010

# CH19-HW04-FALL2010 - 1 CH19-HW04-FALL2010 WebAssign...

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12/14/11 CH19-HW04-FALL2010 1/8 www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3173279 Current Score : 19 / 45 Due : Sunday, October 30 2011 11:59 PM EDT 1. 6/10 points | Previous Answers MI3 19.9.P.065 The circuit shown above consists of a single battery, whose emf is 1.3 V, and three wires made of the same material, but having different cross-sectional areas. Each thick wire has cross-sectional area 1.7 e-6 m 2 , and is 19 cm long. The thin wire has cross-sectional area 5.5 e-8 m 2 , and is 4.7 cm long. In this metal, the electron mobility is 6 e-4 (m/s)/(V/m), and there are 8e+28 mobile electrons/m 3 . Which of the following statements about the circuit in the steady state are true? The symbol E F represents the magnitude of the electric field at location F , and the symbol E D represents the magnitude of the electric field at location D . Which of the following equations is a correct energy conservation (loop) equation for this circuit, following a path that starts at the positive end of the battery and goes clockwise ? CH19-HW04-FALL2010 (Homework) Rachel Pereira PHYS 272-Fall 2011, Fall 2011 Instructor: Virendra Saxena Web Assign The due date for this assignment is past. Your work can be viewed below, but no changes can be made. The magnitude of the electric field at locations D and F is the same. At location B the electric field points toward the top of the page. The magnitude of the electric field at locations F and C is the same. The electron current at location D is the same as the electron current at location F .

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12/14/11 CH19-HW04-FALL2010 2/8 www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3173279 The symbol i F represents the electron current at location F , etc. Which of the following equations is a correct charge conservation (node) equation for this circuit? Use the appropriate equation(s), plus the equation relating electron current to electric field, to solve for the factor that goes in the blank below: E F = .032 0.0324 * E D Use the appropriate equation(s) to calculate the magnitude of E D E D = (No Response) 21.9 V/m Use the appropriate equation(s) to calculate the electron current at location D in the steady state: i D = (No Response) 5.79e+19 electrons/s electrons/s Read the eBook Section 19.9 2. 10/10 points | Previous Answers MI3 19.9.P.063 A circuit is constructed from two batteries and two wires, as shown in the diagram below. 0 = +
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CH19-HW04-FALL2010 - 1 CH19-HW04-FALL2010 WebAssign...

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