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Clayton State University Department of Natural Sciences June 26, 2008 Physics 1112 – Quiz 7 Name __SOLUTION___________________________________ Two singly ionized atoms move out of a slit at point S, as shown in the Figure below, and into a magnetic field 0f 0.100 T. Each has a speed of 1.00 x 106 m/s. The nucleus of the first atom contains one proton and has a mass of 1.67 x 10-27 kg, and the nucleus of the second atom contains two neutrons and has a mass of 3.34 x 10-27 kg. Find their distance of separation when they strike a photographic plate P. r = (mV)/(|q| B) r1 = {(1.67 x 10-27 kg)(1.00 x 106 m/s)}/{(1.60 x 10-19 C)(0.100 T)} = 0.104 m r2 = {(3.34 x 10-27 kg)(1.00 x 106 m/s)}/{(1.60 x 10-19 C)(0.100 T)} = 0.208 m d = 2 (r2 – r1) = 0.207 m Clayton State University Department of Natural Sciences March 1, 2006 Physics 1112 – Quiz 5 Name ___SOLUTION__________________________________ Alpha particles of charge q = + 2e and mass m = 6.60 x 10-27 kg are emitted by radioactive source at a speed of 1.60 x 107 m/s. a. What magnetic field strength would be required to bend them into a circular path of radius r = 0.250 m? r = (mV) / (qB) B = (mV) / (rq) B = (6.60 x 10-27 kg)(1.60 x 107 m/s) / ((0.250 m)(1.60 x 10-19 C)) = 1.32 T b. If the magnetic field is directed out of the page, do the particles rotate clockwise or counterclockwise? Clayton College & State University Department of Natural Sciences October 13, 2004 Physics 1112 – Quiz 5 Name _____SOLUTION________________________________ 1. Find the direction of the magnetic force acting on the positively charged particle for given orientations of particle’s velocity and constant magnetic field. 2. A proton is released such that its initial velocity is from right to left across this page. The proton’s path, however, is deflected in a direction toward the bottom edge of the page due to the presence of a uniform magnetic field. What is the direction of this field? a. Out of the page. b. Into the page. c. From bottom edge to top edge of the page. d. From right to left across the page. Clayton State University Department of Natural Sciences February 28, 2008 Physics 1112 – Quiz 6 Name ______SOLUTION_______________________________ 1. Find the direction of the magnetic force acting on the negatively charged particle for given orientations of particle’s velocity and constant magnetic field. 2. Find the direction of the constant magnetic field/particle’s velocity given the orientation of the magnetic force acting on a positively charged particle and particle’s velocity/orientation of the magnetic field. Clayton State University Department of Natural Sciences June 26, 2007 Physics 1112 – Quiz 6 Name ___SOLUTION__________________________________ 1. Find the direction of the magnetic force acting on the negatively charged particle for given orientations of particle’s velocity and constant magnetic field. 2. Find the direction of the constant magnetic field/particle’s velocity given the orientation of the magnetic force acting on a positively charged particle and particle’s velocity/orientation of the magnetic field. Clayton State University Department of Natural Sciences November 9, 2009 Physics 1112 – Quiz 7 Name _______SOLUTION______________________________ 1. Find the direction of the magnetic force acting on the positively charged particle for given orientations of particle’s velocity and constant magnetic field. 2. An electron is released such that its initial velocity is from right to left across this page. The proton’s path, however, is deflected in a direction toward the bottom edge of the page due to the presence of a uniform magnetic field. What is the direction of this field? a. Out of the page. b. Into the page. c. From bottom edge to top edge of the page. d. From right to left across the page. Clayton College & State University Department of Natural Sciences July13, 2010 Physics 1112 – Quiz 11 Name _SOLUTION____________________________________ 1. Find the direction of the magnetic force acting on the positively charged particle for given orientations of particle’s velocity and constant magnetic field. 2. A proton is released such that its initial velocity is from right to left across this page. The proton’s path, however, is deflected in a direction toward the bottom edge of the page due to the presence of a uniform magnetic field. What is the direction of this field? a. Out of the page. b. Into the page. c. From bottom edge to top edge of the page. d. From right to left across the page.