Au2012_Quiz4

# Is an integer number of wavelengths plus one quarter

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Unformatted text preview: is always zero. is an integer number of wavelength of the light. is an integer number of wavelengths plus one half of the wavelength of the light. is an integer number of wavelengths plus one quarter of the wavelength of the light. 3. Two loops are next to each other as shown to the right. The force on the current in coil B by the current in coil A is? a. b. c. d. e. Up Down Left Right 0 A B Multiple Choice continued(25 pts total, 5 pts each problem) (Please record answers on the provided bubble sheet.) 4. A wave pulse (at the right) is traveling along a string, moving to the left. It is approaching a boundary where the end is “fixed” to the boundary. Which of the following is a possible state of the rope? 5. A positive point charge moves with some velocity next to a long, straight wire carrying a current downward, as shown in the figure below. Because of the charge’s motion, there exists a force on the charge in the upward direction, opposite to the current’s direction. The charge must be moving a. b. c. d. e. out of the page. to the left to the right opposite to the current’s direction. along the current’s direction....
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