6. Particles projected perpendicularly into a uniform magnetic field will move in a circle of radius "". If the strength of the magnetic field was doubled, the speed of the particle was tripled, and the charge on the particle was halved, the radius of the new path would be. A) 2r B) 6r C ) 37 D) 1 . Use the following information to answer the next question. Two wires lie near each other. Wire A carries a conventional current to the right. Wire B carries an electron flow to the left. 7. A magnetic force will be present on each of the wires due to the presence of the other wire. Which of the following statements best describes the forces on the wires? A) The wires will have magnetic forces towards each other B) The wires will have magnetic forces away from each other C) The wire will both have magnetic forces to bottom of page D) The wires will both have magnetic forces to the top of the page Numerical Response 5. An electron passes straight through region of space with perpendicular electric and magnetic fields. If the magnitudes of the electric and magnetic fields are 1.54 x 104 N/C and 3.20 x 10-3 T, then the speed of the electron must be a. bc x 10 m/s. The values of a, b, c, and d, are and (Record all four digits of your answer in the numerical-response section on the answer sheet.)