nversely proportional to L 10. A 0.200-m wire is moved parallel to a 0.500-T mag
ID: 2039748 • Letter: N
Question
nversely proportional to L 10. A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 1.50 m/s. What emf is induced across the ends of the wire? A) 2.25 V 1.00 V 600 v Zero 11. A bar magnet is attached solidly to a frictionless surface and its length is aligned wth x axis. To the right of the first magnet a short distance away is a second barm its center placed on the x axis and its length perpendicular to the x axis. e the iathal magnet is free to move. Once placed in position at rest, which best desc second on of the second magnet? the magnet will move away from the fixed magnet. B) the magnet will not move. C) the magnet will move toward the fixed magnet. D) the magnet will start to rotate
Explanation / Answer
10) D) zero
EMF is given by:
e = BLv sin(the) Here th = 0 (parallel means 0), so sin0 = 0 and thus e = 0.
11) (D) The magnet will start to rotate.
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