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# exam1 - EE321 Exam 1 Spring 2007 Write your name and...

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EE321 Exam 1 Spring 2007 Write your name and student ID on the bluebook. Notes : You must show work for credit. Problems 5-8 (together) can be used to satisfy ABET Objective 2. Problem 3,9 (together) can be used to satisfy ABET Objective 1.

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1.) 15 pts. Consider a Cartesian co-ordinate system (x,y,z). Suppose a uniform H- field of 1 A/m exists in the direction of the x-axis. Calculate the MMF drop from the point (1,1,0) to the point (4,3,-1). 2.) 15 pts. Consider a Cartesian co-ordinate system (x,y,z). A uniform B-field of 1 T exists along the direction of the x-axis. Now consider the rectangular plane bounded by the points (2,0,0),(0,0,2),(0,2,2),(2,2,0). How much flux is traveling through the rectangular plane. 3.) 15 pts. Consider a toroid with a rectangular cross section of 1 cm by 1 cm. The mean radius is 4 cm. The permeability of the magnetic material is 3 10 4 π H/m. The permeability of free space is 7 10 4 H/m. Into this toroid, there is cut a 1 mm airgap. The toroid has two windings. The first has 100 turns of wire.
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exam1 - EE321 Exam 1 Spring 2007 Write your name and...

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