1. i. A positive charge enters a uniform ma netic eld as shown. What is the direction of the magnetic force?I a b c ii. if the charge is negative what will be the answers to a? 2. Particle l and particle 2 travel along the y-axis and enter a region of space that has a uniform 2 T magnetic eld in the z direction as shown in the Figure. Both particles have the same charge, Q=0.] C, and both have the same speed, v = 10 mfs. If the particles are a distance Ax = x2-xl = 0.3 meters apart when they exit the region, what is the difference in their mass, AM = M2-Ml (in grams)? 3 A circular coil of wire has a diameter of 20.0 cm and contains 10 loops. The current in each loop is 3.00 A, and the coil is placed in a 2.00-T external magnetic eld. Determine the maximum and minimum torque exerted on the coil by the eld. 4. The voice coil of a speaker has a diameter of 0.005 m, contains 55 turns of wire, and is placed in a 0.10-T magnetic eld. The current in the voice coil is 2.0 A. (a) Determine the magnetic force that acts on the coil and the cone. (b) The voice coil and cone have a combined mass of 0.0200 kg. Find their acceleration. uh...\" \"\\wa i: j - 5. A proton in a particle accelerator has a speed of 5.0x10 m/s towards +X Direction. The proton encounters a magnetic eld whose magnitude is 0.40 T and whose direction makes an angle of 30.0 degrees with respect to the proton's velocity. Find (a) the magnitude and direction of the force on the proton and (b) the acceleration of the proton. (c) What would be the force and acceleration of the particle were an electron? 6. A horizontal wire carries a current and is in a vertical magnetic eld. What is the direction of the force on the wire