MCELEC - MULTIPLE CHOICE QUESTIONS Electrostatics,...

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MULTIPLE CHOICE QUESTIONS Electrostatics, Circuits, Magnetism Copyright 1999 by Edwin R. Schweber Distributed on the internet by physicsweb.com http://www.physicsweb.com These questions may only be used by teachers with their own students at public, religious, or non-profit private institutions. Since this test is being distributed free to publicize the physicsweb.com internet site, you may not distribute these questions to other people. If you know of other teachers who wish to have a copy of this test, please direct them to http://www.physicsweb.com . You may cut and paste individual questions from this collection into your own tests. However, if you do so, you may not then distribute those tests to other teachers and you may not represent those tests in any way that would suggest that the questions that you cut and pasted from this document were written by you.
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Electricity Multiple Choice Questions Page 1 Copyright 1999 by Edwin R. Schweber. For similar resources visit http://www.physicsweb.com 1. The force between a + 3.0 μ C charge and a + 4.0 μ C charge when they are separated by a distance d is 1.2 Newtons. What would the force be between a + 6.0 μ C charge and a + 8.0 μ C charge that are separated by this same distance d ? A. 1.9 Newtons B. 2.4 Newtons C. 4.8 Newtons D. 0.60 Newtons E. 0.30 Newtons 2. The force between two charges that are separated by 3.00 centimeters is 32.0 Newtons. What will the force between these same two charges be if the distance between them is increased to 12.0 cm? A. 2.00 Newtons B. 8.00 Newtons C. 128 Newtons D. 236 Newtons E. 512 Newtons Question 3 Each of the pictures below shows a pair of small electrically charged spheres. The sign and the magnitude of the charge on each sphere may be the same or different. The arrows represent the force on each sphere due to the other sphere in that pair. 3. Taking both the direction and the length of the arrows into account which combination of pictures are impossible? A. Picture I, only B. Pictures I and II, only C. Pictures II and III, only D. Picture III, only E. Pictures I, II, and III
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Electricity Multiple Choice Questions Page 2 Copyright 1999 by Edwin R. Schweber. For similar resources visit http://www.physicsweb.com Question 4 Each of the pictures below shows the location of a single charge with respect to a point P . The only difference between the pictures is the sign of the charge and the location of the charge to the left or to the right of the point. 4. For which combination of pictures, if any, will both the magnitude and the direction of the electric field at point P be the same. A. none of the pictures B. pictures I and II C. pictures I and III D. pictures II and III E. pictures I, II, and III Question 5 The picture below shows an x,y axis system. There is a positive charge +Q at the origin, a positive charge +2Q at the point (0,a) and a negative charge –Q at the point (a,0) 5. Which picture below best represents the direction of the force on the charge at the origin due to the
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MCELEC - MULTIPLE CHOICE QUESTIONS Electrostatics,...

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