(Solved): 1. A charged particle enters a uniform magnetic field with speed vo, moves through a half-circle in ...

1. A charged particle enters a uniform magnetic field with speed vo, moves through a half-circle in time To, and then leaves the magnetic field as is shown. (a) is the charged particle an electron or proton? (b) What is the final speed of the charged particle as it leaves the magnetic field? (c) If the entry speed is reduced to how much time is spent in the magnetic field? NOTE: Express your answer(s) in terms of vo, To, B (if necessary) and any other relevant physical constants. Two long straight wires (shown in cross-section) carry currents it and iz directly out of the page. They are equal distances from the origin along their respective axes. Also 43 ?4 (a) Sketch the total magnetic field set up at the origin. 4 become in order to rotate the (b) To what value should the ratio 4 magnetic field in part (a) clockwise by 20°? 2.