CH 20 HW 4

# CH 20 HW 4 - CH 20 HW 4 S2009(Homework Current Score 29/29...

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CH 20 HW 4 S2009 (Homework) Current Score: 29/29 Due: Wednesday, March 25, 2009 12:30 PM EDT About this Assignment Extension Requests Question Points 1 2 3 4 3 6 9 11 Total 29/29 Description Electric and magnetic forces; Hall effect Instructions The reasoning used in problems 1 and 2 will be useful in problem 3. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 3/3 points All Submissions Notes Question: MI2 20.X.08.03 Question part Points Submissions 1 2 1 2 1/3 2/3 Total 3/3 A proton moves at constant velocity in the +y direction, through a region in which there is an electric field and a magnetic field. The electric field is in the +x direction, and has magnitude 700 V/m. The magnetic field is in the -z direction, and has magnitude 0.25 T.

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F net = 0 0 N What is the speed of the proton? v = 2800 2800 m/s 2. 6/6 points All Submissions Notes Question: MI2 20.RQ.31.alt01 Question part Points Submissions 1 2 3 4 5 6 1 1 1 1 1 1 1/3 1/3 1/3 1/3 2/3 2/3 Total 6/6 A copper wire with square cross section carries a conventional current I in the -x direction. There is a magnetic field B in the +z direction. Draw a diagram illustrating the situation, to help you answer the following questions. What is the direction of E parallel , the electric field that causes the current to flow? -x -x What is the direction of the drift velocity of the mobile electrons? +x +x What is the direction of the magnetic force on the moving electrons? +y
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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 20 HW 4 - CH 20 HW 4 S2009(Homework Current Score 29/29...

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