Fall 2017 JSU Physics 212 Test 3A Name He Nbery 1. In the figure, RI R2, VI and
ID: 1777082 • Letter: F
Question
Fall 2017 JSU Physics 212 Test 3A Name He Nbery 1. In the figure, RI R2, VI and V2 are the potential diterences across RI and R. (a) vi> v2 (b) V1 = V2 (d) Can't determine 2. A negatively-charged particle travels parallel to magnctic field lines within a regiou of spae Which one ofthe following statements concerning the force exerted on tepincle lstroe? Amwer a) The force is directed perpendicular to the magnctic tie b) The force is perpendicular to the direction in which the particle is moving c) The force slows the particle d) The force accelerates the particle e) The force has a magnitude of zero newtons. 3. An electron moves in the negative x direction, through a uniform agnetic field that is in the uegative v direction. The magnetic force on the electron is Answer A) in the negative x direction B) in the positive y direction C) in the negative y direction D) in the positive z direction E) in the negative z direction 4. Consider the situation shown. A triangular, aluminum loop is slowly moving to the right Eventually, it will enter and pass through the uniform magnetic field region represented by the tails of arrows directed away from you. When the loop is entering the magnetic ficld, what will be the direction of any induced current present in the loop? Answer a) clockwise b) counterclockwise c) No current is induced d) point out of paper e) point into the paper 5. Two parallel wires have currents that have the same direction, but differing magnitude. The current in wire A is i; and the current in wire B is 2i. Which one of the following statements concerning this situation is true? a) Wire A attracts wire B with half the force that wire B attracts wire A. b) Wire A attracts wire B with twice the force that wire B attracts wire A. c) Both wires attract each other with the same amount of force d) Both wires attract repel other with the same amount of force. e) Wire A repels wire B with twice the force that wire B attracts wire A nswerExplanation / Answer
1) V1 = V2
2) the force has magnitude of zero newtons
3) in the postive z direction
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