chapter 29 pt 1

29.3

3. | A proton moves along the xaxis with VI = 2 X 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the (x, y, 2,) positions (a) (2 cm, 0 cm, 0 cm), (b) (0 cm, 2 cm, 0 cm), and (c) (0 cm, 1 cm, 0 cm)? 11. || The magnetic field at the center of a loop, 2 cm in diameter, is 2 mT. a. What is the current in the loop? b. A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2 mT? y (cm) 3? (cm) 50- f x\" Integration path B=0.10T x (cm) FIGURE EX29.20 FIGURE EX29.21 _) 21. || What is the line integral of B between points i and f in FIGURE E)(29.21'EJ 35. | The right edge of the circuit in FIGURE EX29.35 extends into a 50 mT uniform magnetic field. What are the magnitude and direction of the net force on the circuit? 30 \\ , \\ ,, 1 10A \\ / \\ 10A 2 2.0CI'I1 X \\ X X \\ X \\ {B* B=50mT ' 50cm ' FIGURE EX29.35 FIGURE EX29.36