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Fig 29-CO, p.895
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Ch 29 Magnetic Fields 29.1 Magnetic Fields and Forces F B = q v x B (cross or vector product) F B = |q|vBsin F B v and B and use the rt. hand rule ixi = jxj = kxk = 0 ixj = k (ijkijk) Units: Tesla = N/C(m/s) = N/Am + -
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Fig 29-4a, p.898
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Fig 29-3, p.897
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P29.1 (p.918) CT1-4 (a-d) A.up B.down C.right D.left E.in F.out G. none
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Ch 29 Magnetic Fields 29.1 Magnetic Fields and Forces P29.3 (p.830)
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Ch 29 Magnetic Fields 29.2 Motion of a Charged Particle in a Uniform Magnetic Field P29.15 (p.831)
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Ch 29 Magnetic Fields 29.3 Applications Involving Charged Particles Moving in a Magnetic Field P29.19 (p.831)
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FBFB FEFE CT5: What is the sign of the charge? A. plus B. minus C. neutral
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Ch 29 Magnetic Fields 29.4 Magnetic Forces Acting on a Current Carrying Conductor n = number of carriers per volume A = cross-sectional area v D = drift velocity ds = ds (v D /v D ) (a vector along v D ) ds
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Ch 29 Magnetic Fields 29.4 Magnetic Forces Acting on a Current Carrying Conductor F B = I ds x B (infinitesimal length) F B = I ds x B (in general) F B = I L x B (finite length in a uniform magnetic field) P29.26 (p.831) I B
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The magnetic force on a curved current carrying wire in a uniform magnetic field is equal to that on a straight wire connecting the end points and carrying the same current. F B = I ds x B
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CT6: The magnetic force on the above closed loop in a uniform magnetic field is A. to the right B. upward along B C. zero
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CT7: The same current passes from A to B in each case below. A and B are always 10 cm apart. Rank them according to the magnitude of the magnetic force from greatest to least. A. abcd B. dcba C. cabd D. bacd E. acbd F. acdb 30
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Ch 29 Magnetic Fields 29.5 Torque on a Current Loop in a Uniform Magnetic Field
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coil rotation axis top view side view
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P29.35 (p.833)
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Fig 29-17, p.907
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