ch20hw5 - CH 20 HW 5 S2006 Page 1 of Logged in as...

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ebAssign.net hursday, May 4, 2006 11:23 PM EDT Logged in as wcwebb@ncsu Logou ome | My Assignments | Grades | Communication | Calendar Guide | Help | My Option Home > My Assignments > CH 20 HW 5 S2006 (Homework) WEBB WILLIAM CHAD PY 208, section 001, Spring 2006 Instructor: Albert R. Young North Carolina State University About this Assignment Due: Wednesday, April 5, 2006 07:30 AM EDT Current Score: 11 out of 11 Question Score Submission Options Description Magnetic force ubs: 2/4 iewing: Last esponse iew: All esponses otes pts 1 1/1 2 1/1 3 1/1 4 1/1 4/4 1. In a room on a space station in a region of outer space that is free of external magnetic fields, two long straight wires carrying conventional current I are connected by a three-quarter-circular arc of radius R , as shown in the diagram. The rest of the circuit is far enough away that it contributes little magnetic field in this region. Electric fields are also present in this room, due to charged objects not shown on the drawing. An electron is moving to the right with speed v as it passes through the center C of the arc, and at that instant the net electric and magnetic force on the electron is zero . Figure 20.84 (a) What is the direction of the magnetic field at the center C , due to the current I ? into the page [ into the page ] (b) What is the direction of the electric field at the center C ? down [ down ] If the current is 8 A, the radius of the loop is 0.026 m, and the speed of the electron is 6.1 10 5
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This homework help was uploaded on 03/19/2008 for the course PY 208M taught by Professor Chabay during the Spring '08 term at N.C. State.

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ch20hw5 - CH 20 HW 5 S2006 Page 1 of Logged in as...

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