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A 01-M-Long Rod Rotates About a Perpendicular Axis at One End

Question 83

Multiple Choice

A 0.1-m-long rod rotates about a perpendicular axis at one end. As the rod rotates, it passes through a uniform magnetic field that has a perpendicular component of 3 *10<sup>-2</sup> T to the plane of rotation. If the induced EMF across the ends of the rod is 0) 2 V, then calculate the number of revolutions per second of the rod. A) 6.7 * 10<sup>1</sup> revs/s B) 6.7 *10<sup>3</sup> revs/s C) 4.7*10<sup>-3</sup> revs/s D) 6.7*10<sup>2</sup> revs/s E) 2.1 *10<sup>2</sup> revs/s A 0.1-m-long rod rotates about a perpendicular axis at one end. As the rod rotates, it passes through a uniform magnetic field that has a perpendicular component of 3 *10-2 T to the plane of rotation. If the induced EMF across the ends of the rod is
0) 2 V, then calculate the number of revolutions per second of the rod.


A) 6.7 * 101 revs/s
B) 6.7 *103 revs/s
C) 4.7*10-3 revs/s
D) 6.7*102 revs/s
E) 2.1 *102 revs/s

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