ABET Exam

ABET Exam - EE321 ABET Exam Spring 2009 You may establish...

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EE321 ABET Exam Spring 2009 You may establish credit for ABET objectives (by answering the following questions).
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1.) Objective 1. Ability to Analyze / Design Electromagnetic Devices. A solenoid is an electromechanical device used for actuation. In this single phase device, the winding is wrapped in a cylindrical configuration (like a sewing thread around a spool) with outside radius o r , inside radius i r , and height h . The movable mechanical part is located inside this cylinder. The packing factor of the winding is denoted f p , and the resistivity of the conductor is ρ . There are N turns. Find an expression for the winding resistance in terms of the aforementioned variables. 2.) Objective 2. Understand Principals of Electromagnetic Energy Conversion Consider an electromechanical device with the following flux linkage equations 2 2 1 2 2 1 5 1 8 ) )( 2 sin 5 ( ) 2 1 )( 2 sin 5 ( 1 i i i i i e r i r + + - = + + - - = - θ λ Derive an expression for torque.
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ABET Exam - EE321 ABET Exam Spring 2009 You may establish...

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