Lecture12 - PHYS 272: Matter and Interactions II - Electric...

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Fall 2010 Prof. Yong Chen ( yongchen@purdue.edu ) Prof. Michael Manfra ( mmanfra@purdue.edu ) Lec. 12 Slide 1/23 PHYS 272: Matter and Interactions II -- Electric And Magnetic Interactions http://www.physics.purdue.edu/academic_programs/courses/phys272/ PHYSICS 272 Lecture 12 Magnetic Fields [EMI 18.7-18.10] Announcement Exam1 Solutions Posted on Web
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Fall 2010 Prof. Yong Chen ( yongchen@purdue.edu ) Prof. Michael Manfra ( mmanfra@purdue.edu ) Lec. 12 Slide 2/23 PHYS 272: Matter and Interactions II -- Electric And Magnetic Interactions http://www.physics.purdue.edu/academic_programs/courses/phys272/ Biot-Savart Law for a Single Moving Charge r r q E ˆ 4 1 2 0  Electric field of a point charge: Moving charge makes a curly magnetic field: 2 0 ˆ 4 r r v q B B units: T (tesla) = kg s -2 A -1 m/s C m T 2 7 0 10 4 r
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Fall 2010 Prof. Yong Chen ( yongchen@purdue.edu ) Prof. Michael Manfra ( mmanfra@purdue.edu ) Lec. 12 Slide 3/23 PHYS 272: Matter and Interactions II -- Electric And Magnetic Interactions http://www.physics.purdue.edu/academic_programs/courses/phys272/ 2 0 ˆ 4 r r v q B v r 1 B 1 B 2 B 3 B 0 4 qv r 2 sin r 3 v r B v r B 1 - - +
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Fall 2010 Prof. Yong Chen ( yongchen@purdue.edu ) Prof. Michael Manfra ( mmanfra@purdue.edu ) Lec. 12 Slide 4/23 PHYS 272: Matter and Interactions II -- Electric And Magnetic Interactions http://www.physics.purdue.edu/academic_programs/courses/phys272/ v l nA q l qnAv l I v qnA I ) ( ) )( ( ) (
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Fall 2010 Prof. Yong Chen ( yongchen@purdue.edu ) Prof. Michael Manfra ( mmanfra@purdue.edu ) Lec. 12 Slide 5/23 PHYS 272: Matter and Interactions II -- Electric And Magnetic Interactions http://www.physics.purdue.edu/academic_programs/courses/phys272/ x y 2 2 y x r 2 2 0 2 2 2 / 3 2 2 0 2 2 2 2 0 2 2 2 0 ) 2 / ( 4 ) ( 4 ˆ 4 ˆ 4 L y y
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Lecture12 - PHYS 272: Matter and Interactions II - Electric...

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