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Unformatted text preview: lim (kl9356) Homework 12 Weathers (22202) 1 This printout should have 10 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 10.0 points What is the radius of the smallest possible cir cular orbit that a proton with energy 2 . 8 MeV can have in a 2 T magnetic field? The mass of a proton is 1 . 67 10 27 kg and its charge is 1 . 609 10 19 C. Answer in units of m. 002 10.0 points A singly charged positive ion has a mass of 1 . 78 10 26 kg. After being accelerated through a potential difference of 398 V, the ion enters a magnetic field of 0 . 237 T, in a direction perpendicular to the field. Calculate the radius of the path of the ion in the field. Answer in units of cm. 003 (part 1 of 2) 10.0 points A cyclotron designed to accelerate protons has a magnetic field of magnitude 0 . 35 T over a region of radius 5 . 7 m. The charge on a proton is 1 . 60218 10 19 C and its mass is 1 . 67262 10 27 kg. What is the cyclotron frequency? Answer in units of rad / s. 004 (part 2 of 2) 10.0 points What is the maximum speed acquired by the protons? Answer in units of m / s....
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 Spring '00
 Littler
 Magnetism, Work

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