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Unformatted text preview: into screen r Net Force is Zero! :22 Physics 212 Lecture 14, Slide 11
Physics Preflight 9
30 BB 20
0 What is the direction of the torque on wire 2 due to wire 1?
A) Up B) Down C) Into Screen D) Out of screen E) Zero B
B :24 F out of screen F into screen Physics 212 Lecture 14, Slide 12
Physics Preflight 6
BB Ftop + Fbottom =0 B2 B1 X X F1
B ~ 1/R F2 B1 X F1 B1 > B2
15 :24 A
0 Physics 212 Lecture 14, Slide 13
Physics B on axis from Current Loop I
Resulting B field
Current in Wire
:24 Physics 212 Lecture 14, Slide 14
Physics What about Off-Axis ??
Biot-Savart Works, but need to do numerically See Simulation !!
:24 Physics 212 Lecture 14, Slide 15
Physics Two Current Loops
Two identical loops are hung next to each other.
Current flows in the same direction in both. BB The loops will:
A) Attract each other B) Repel each other Two ways to see this:
1) Like currents attract 2) Look like bar magnets
2) Look N
:30 S N S Physics 212 Lecture 14, Slide 16
Physics Right Hand Rule Review
1. ANY CROSS PRODU...
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This note was uploaded on 02/09/2012 for the course PHYSICS 212 taught by Professor Mestre during the Spring '11 term at University of Illinois at Urbana–Champaign.
- Spring '11