Ch21 HW2 - Ch21 HW2 F2010 12/17/10 9:26 PM Stefan Coreth PY...

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12/17/10 9:26 PM Ch21 HW2 F2010 Page 1 of 4 http://www.webassign.net/v4cgisacoreth@ncsu/student.pl?s=20101218022623sacoreth@ncsu6657124101 Current Score : 23 / 26 Due : Friday, October 22, 2010 11:25 AM EDT 1. 1/1 points Question: MI3 21.1.X.003 In the figure there is a uniform magnetic field going into the page, produced by a large current- carrying coil (not shown). Would a moving electron go in a clockwise or counter-clockwise circle? (Hint: try both directions, and see which direction is consistent with the magnetic force.) Note that we're not asking what magnetic field is made by the moving electron, but what effect the coil's magnetic field has on the moving electron. 2. 1/4 points Question: MI3 21.1.X.035 An alpha particle (consisting of two protons and two neutrons) is moving in a circle at constant speed, perpendicular to a uniform magnetic field applied by some current-carrying coils. The alpha particle makes one clockwise revolution every 80 nanoseconds (see the figure). Ch21 HW2 F2010 (Homework) Stefan Coreth PY 208, section 002M, Fall 2010 Instructor: Laura I. Clarke Web Assign The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Clockwise:
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Ch21 HW2 - Ch21 HW2 F2010 12/17/10 9:26 PM Stefan Coreth PY...

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