73. A uniform magnetic field of magnitude 0.150 T is directed along the positive xaxis. A positron moving at a speed of 5.00 × 10º m/s enters the field along a direc- tion that makes an angle of 0 = 85.0° with the x axis (Fig. P29.73). The motion of the particle is expected to be a helix as described in Section 29.2. Calculate (a) the pitch p and (b) the radius rof the trajectory as defined in Figure P29.73. B Figure P29.73

73. A uniform magnetic field of magnitude 0.150 T is directed along the positive xaxis. A positron moving at a speed of 5.00 × 10º m/s enters the field along a direc- tion that makes an angle of 0 = 85.0° with the x axis (Fig. P29.73). The motion of the particle is expected to be a helix as described in Section 29.2. Calculate (a) the pitch p and (b) the radius rof the trajectory as defined in Figure P29.73. B Figure P29.73

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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9. A rectangular coil consists of N=10 closely wrapped turns and has dimensions a = 0.400 m and b=0.300 m. The coil is hinged along the y axis, and its plane makes an angle -60.0° with the x I- 1.20 A axis. What are the magnitude and the direction of the torque exerted 0.400 m on the coil by a uniform magnetic field B=0.800 T directed along the +x axis when the current is /=1.20 A in the direction shown? 60° 0.300 m (a) 0,576 N m, - y direction (b) 0,576 N m, +y direction (c) 0,0576 N m , -y direction (d) 0,0576 N m , +y direction (e) 0,0998 N m, -y direction (f) 0,0998 N m, +y direction
A 20 cm diameter and 20 turn circular coil is located in the xz-plane,and each wire of the coil carries a current of 2.0 A in the counter-clockwise direction.An external magnetic field B=(0.55i+0.60j-0.65k) passes through the coil.Find the coil's magnetic moment µ (in units of Am^2),the torque (in units of Nm) acting on the coil due to external magnetic field,and the potential energy of the coil within the field (in units of jule).Take pi=3. a)µ=1.2(-k); t=[0.72i-0.66j] ;U=-0.78 b)µ=1.2j ; t=[0.78i+0.66k] ; U=0.72 c)µ=1.2(-i); t=[-0.78j-0.72k] ; U=0.66 d)µ=1.2k ; t=[-0.72i+0.66j] ; U=0.78 e)µ=1.2j ; t=[-0.78i-0.66k] ; U=-0.72
51. A rectangular coil consists of N = 100 closely wrapped M turns and has dimensions a = 0.400 m and b=0.300 m. The coil is hinged along the y axis, and its plane makes an angle 0 = 30.0° with the x axis (Fig. P29.51). (a) What is the magnitude of the torque exerted on the coil by a uniform magnetic field B = 0.800 T directed in the positive x direction when the current is I = 1.20 A in the direction shown? (b) What is the expected direction of rotation of the coil? %3D B I a X- Figure P29.51
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34. Why is the following situation impossible? A conducting rectangular loop of mass M= 0.100 kg, resistance R = 1.00 Q, and dimensions w = 50.0 cm by { = 90.0 cm is held with its lower edge just above a region with a uniform magnetic field of magnitude B = 1.00 T as shown in Figure P30.34. The loop is released from rest. Just as the top edge of the loop reaches the region containing the field, the loop moves with a speed 4.00 m/s. out Figure P30.34
Answer 1-10 , no need for solutions
A uniform magnetic field of magnitude 0.14 T is directed along the positive x-axis. A positron moving at a speed of 4.95x10^6 m/s enters the field along a direction that makes an angle of θ = 85° with the x-axis. The motion of the particle is expected to be a helix. Calculate the pitch p of the trajectory.
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The rectangular loop shown below, carrying the current I, is located in a uniform magnetic field of 0.50 T pointing in the positive y direction. 0 y X What is the magnitude of the magnetic dipole moment of the loop? Use the following data: h = 5.5 cm, w = 5.5 cm, 0 = 37.0°, I = 9.0 A. Submit Answer Incompatible units. No conversion found between "m^2" and the required units. Tries 0/12 Previous Tries Calculate the magnitude of the torque about the z-axis on the loop. Submit Answer Tries 0/12