Serway_PSE_quick_ch29

Serway_PSE_quick_ch29 - Physics for Scientists and...

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Physics for Scientists and Engineers, 6e Chapter 29 – Magnetic Fields
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The north-pole end of a bar magnet is held near a positively charged piece of plastic. The plastic is 1 2 3 33% 33% 33% 1 2 3 4 5 1. attracted 2. repelled 3. unaffected by the magnet
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The magnetic force exerted by a magnetic field on a charge is proportional to the charge’s velocity relative to the field. If the charge is stationary, as in this situation, there is no magnetic force.
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A charged particle moves with velocity v in a magnetic field B . The magnetic force on the particle is a maximum when v is 1 2 3 33% 33% 33% 1 2 3 4 5 1. parallel to B 2. perpendicular to B 3. zero
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The maximum value of sin θ occurs for θ = 90°.
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An electron moves in the plane of this paper toward the top of the page. A magnetic field is also in the plane of the page and directed toward the right. The direction of the magnetic force on the electron is 1 2 3 4 5 6 17% 17% 17% 17% 17% 17% 1 2 3 4 5 1. toward the top of the page 2. toward the bottom of the page 3. toward the left edge of the page 4. toward the right edge of the page 5. upward out of the page 6. downward into the page
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The right-hand rule gives the direction. Be sure to account for the negative charge on the electron.
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The four wires shown below all carry the same current from point A to point B through the same magnetic field. In all four parts of the figure,
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This note was uploaded on 01/19/2010 for the course PHYS 200 taught by Professor Davies during the Spring '08 term at Roger Williams.

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Serway_PSE_quick_ch29 - Physics for Scientists and...

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