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Unformatted text preview: A region of uniform electric field E pointing in the y direction extends from y=0 to y=s. Above y=s, there is a region of magnetic field B, pointing in the z direction. (a) When and where does the ion first cross the x-z plane located at y=s? (b) What is the ions trajectory in the B-field region? Where does it cross the x-z plane at y=s for the second time? (c) Where does the ion come to rest? y B s E 0 X Problem 4 (10 points): Shown below is the cross section of a long coaxial cable consisting of an inner core with radius r 0 and an outer shell of radius r 1 , both centered at r=0. The inner core carries a current I going into the paper plane, the outer shell carries the same current I in the opposite direction. Using Ampere’s law, find the magnitude of the magnetic field B(r) in the region r 0 < r < r 1 and r > r 1 . r 0 r 1...
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This note was uploaded on 10/23/2008 for the course 8 8.02 taught by Professor Hudson during the Spring '07 term at MIT.
- Spring '07