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Soln8 - Magnetic Forces and Magnetic Fields

# Soln8 - Magnetic Forces and Magnetic Fields - 8B Worksheet...

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8B Worksheet Answers 8. Magnetic Forces and Magnetic Fields 1. 2. 3. a) b) Yes, you can place a compass anywhere on the point along the bar magnets’ axis that is exactly midway between the two north poles. (The magnetic field is zero here, so the needle will feel no net force.) 4. (1) Out of page (2) Out of page (3) Leftward (4) Downward (5) Leftward (6) Upward (7) Upward (8) Out of page 5. (1) Out of page (2) Into page (3) Leftward (4) None (5) Rightward (6) Upward (7) Downward (8) None

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6. (1) Into page (2) Into page (3) Leftward (4) Rightward (5) Out of page (6) Into page 7. (1) Leftward (2) Upward (3) Into page (4) Out of page 8. In both cases, we have charged particles moving in a magnetic field with a velocity that is perpendicular to the field (i.e. the particles have velocities within the plane of the page while the field points into the page). The direction of the force will always be perpendicular to both the velocity and the field. Having a force perpendicular to velocity leads to circular motion
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