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lec20 - ECE2112_20 3 ECE 2112-Lecture 20 •...

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Lecture Notes for C-term 2009 Lecture 19 Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, MA ECE 2112 Electromagnetic Theory Copyright, 2000 © R. Ludwig
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ECE2112_20 2 Lecture 20 Objectives What is torque? How does the magnetic field generate a torque in a wire loop? What is the building block of a magnetic medium?
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ECE2112_20
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Unformatted text preview: ECE2112_20 3 ECE 2112 -Lecture 20 • Torque (exploits cross product; is the basic motion mechanism of electro motors) sin F d z u F d T ECE2112_20 4 ECE 2112- Lecture 20 • Wire loop • With magnetic moment 3 3 1 1 B A I y u F d F d T B m T gives A I N n m ˆ Serves a building block of magnetic media!!...
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  • Spring '09
  • Ludwig
  • Electromagnet, Magnetic Field, Prof. R. Ludwig, Prof. R. Ludwig Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester, Engineering Worcester Polytechnic, R. Ludwig

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