# s03x2aan - x = x m , so there is no frequency shift due to...

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NAME PHYS-1200 PHYSICS II QUIZ 2 MARCH 26, 2003 SOLUTIONS PART A. 1. A 6. D 2. B 7. B 3. B 8. C 4. B 5. E PART B . 1. TO THE BOTTOM OF THE PAGE The current in the wire produces an increasing magnetic flux directed out of the page, within the wire loop. According to Lenz’s law, the induced electric field would be in a direction to oppose that increase. It must be clockwise about the loop, so at P , it is toward the bottom of the page. 2. a) TO THE LEFT The same direction as the current in the wires. b) INTO THE PAGE Based on the direction of the current and the right hand rule. 3. a) GREATER THAN 500 Hz The whistle is moving toward the detector, so a higher frequency is detected due to the Doppler effect. b) EQUAL TO 500 Hz The block, and whistle stop at x = – x m , so there is no frequency shift due to the Doppler effect. c) LESS THAN 500 Hz The whistle is moving away from the detector, so a lower frequency is detected due to the Doppler effect. d) EQUAL TO 500 Hz The block, and whistle stop at

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Unformatted text preview: x = x m , so there is no frequency shift due to the Doppler effect. NAME PART C . 1. a) F) 10 . 2 ( 2 C) 10 . 4 ( 2 6 2 5 2--× × = = C q U E U E = 4.0 ×10-4 J b) F) 10 . H)(2 10 30 . ( 1 2 1 1 2 1 6 3--× × = = π LC f f = 6.5 ×10 3 Hz = 6500 Hz = 6.5 kHz c) F) 10 . H)(2 10 30 . ( C 10 . 4 6 3 5---× × × = = = LC Q Q I ϖ I = 1.6 A d) The time required is one quarter of a period, so F) 10 . H)(2 10 30 . ( 2 2 4 1 4 6 3--× × = = = LC T t t = 3.8 ×10-5 s = 38 μ s 2. a) For the lowest frequency mode, 2 λ = L , and f v = , so Hz) 2(600 m/s 200 2 = = f v L L wire = 0.17 m = 17 cm b) Hz 600 m/s 343 = = f v = 0.57 m = 57 cm c) For the the tube to be the shortest possible, it will oscillate in its fundamental mode. In that case, 4 m 57 . 4 = = L L tube = 0.14 m = 14 cm d) For the next standing wave mode, 4 ) m 57 . ( 3 4 3 = = L L tube = 0.43 m = 43 cm...
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## This test prep was uploaded on 04/18/2008 for the course PHYS 1200 taught by Professor Stoler during the Spring '06 term at Rensselaer Polytechnic Institute.

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s03x2aan - x = x m , so there is no frequency shift due to...

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