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Unformatted text preview: correct choice.) Toward the left Toward the right Into the page Out of the page Toward the top of the page Toward the bottom of the page Clockwise Counter-clockwise Not enough information None of the other given choices is correct Turn the paper over. There is more on the back. 2. a) In the expression B · d s , what is the physical meaning of d s ? (Circle the correct choice.) An infinitesimal surface area An infinitesimal displacement of a wire An infinitesimal displacement of a charge An infinitesimal displacement along an arbitrary path None of the other given choices is correct. b) Imagine a circular Amperian loop centered on the conductor. What is the angle between d s and B at point A , if you travel in a counter-clockwise direction around the loop? (Circle the correct choice.) 0° 90° 180° 270° Some other angle c) Does the angle between d s and B change as you move from point A to point B ? (Circle the correct choice.) Yes No Not enough information...
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- Spring '06
- Current, 0°, Right-wing politics, Left-wing politics, Correct choice, 90°