physics HW #6

# physics HW #6 - Physics 112 HW#6 1 An electron has a...

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Physics 112 HW #6 April 23, 2010 1. An electron has a kinetic energy of 4.60 10 -17 J. It moves on a circular path that is perpendicular to a uniform magnetic field of magnitude 4.80 10 -5 T. Determine the radius of the path? 1.19 2. Suppose that the target is located at the coordinates x = -0.12 m and y = -0.12 m. In addition, suppose that the particle is a proton and the magnetic field has a magnitude of 0.012 T. The speed at which the particle is projected is the same for either of the two paths leading to the target. Find the speed. 13.8e4 3. A wire carries a current of 0.66 A. This wire makes an angle of 58° with respect to a magnetic field of magnitude 4.20 10 -5 T. The wire experiences a magnetic force of magnitude 6.80 10 -5 N. What is the length of the wire? 2.89 4. Two insulated wires, each 2.10 m long, are taped together to form a two-wire unit that is 2.10 m long. One wire carries a current of 7.00 A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of

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physics HW #6 - Physics 112 HW#6 1 An electron has a...

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