The magnetic field inside a solenoid of circular cross section is given by B = bt k, where b = 2.0 T/ms . At time t = 0.36 us , a proton is inside the solenoid at z = 5.4 cm , y= z=0, and is moving with velocity i = 4.6 j Mm/s . Part A Find the electromagnetic force on the proton. Express your answers using two significant figures separated by commas. nα ΑΣφ F, Fy, F =

The magnetic field inside a solenoid of circular cross section is given by B = bt k, where b = 2.0 T/ms . At time t = 0.36 us , a proton is inside the solenoid at z = 5.4 cm , y= z=0, and is moving with velocity i = 4.6 j Mm/s . Part A Find the electromagnetic force on the proton. Express your answers using two significant figures separated by commas. nα ΑΣφ F, Fy, F =

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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Part E A straight wire carries a current of 1.20 A. The length vector of the wire is l = (0.200 m)i+ (-0.120 m)j, and the wire is in a uniform magnetic field B= (0.0175 T)k. Find the x-component of the magnetic force on the wire. Express your answer with the appropriate units. HẢ ? F = Value Units %3D Submit Request Answer Part F Find the y-component of the magnetic force on the wire. Express your answer with the appropriate units. Ti HẢ ? Fy = Value Units Submit Request Answer Part G Find the z-component of the magnetic force on the wire. Express your answer with the appropriate units. HA F = Value Units Submit Request Answer
C A charged particle moves through a velocity selector at constant velocity. The velocity selector is configured with "crossed" electric and magnetic fields of magnitude E= 2.00 x 10 N/C and B = 0.2 T Hint a. What is the velocity of the charged particle? Velocity of the charged particle is x 10 m/s. b. When the electric field is turned off, the charged particle travels in a circular path of radíus 2 mm, as it travels through the magnetic field (still at B=0.2 T). What is the mass-to-charge ratio of the particle? Hint for (b) Mass-to-charge ratio of the particle is kg/C. (Use the "E" notation to enter your answer in scientific notation. For example, to enter 3.14 x 10-¹2, enter "3.14E-12".) Submit Question G Search or type URL % 5 A MacBook Pro 6 &
The earth's magnetic field, with a magnetic dipole moment of 8.0 x 1022 A m², is generated by currents within the molten iron of the earth's outer core. Suppose we model the core current as a 3000-km-diameter current loop made from a 1000-km-diameter "wire." The loop diameter is measured from the centers of this very fat wire. ▼ Part B What is the current density J in the current loop? Express your answer to two significant figures and include the appropriate units. J = Submit Part C Лоор Jwire μA Value Submit Request Answer To decide whether this is a large or a small current density, find the ratio of the current density J in the current loop to the current density of a 3.0 A current in a 1.0-mm-diameter wire. Express your answer using two significant figures. 17 ΑΣΦ VO Units Request Answer ? ?
In some facilities, real-time MRI is used to monitor a treatment. This imaging allows the treatment to be adjusted to achieve optimum results. However, the devices that deliver the treatment can themselves produce magnetic fields that interfere with the imaging. In one case, a device produces a 65 T static field parallel to the 1.5 T field in the MRI machine Part A By how much does this additional field change the proton's procession frequency? Express your answer with the appropriate units. A/= Submit 309 10 HA x₂ x+10 Hz Previous Answers Request Answe 431 12
A rectangular loop of wire with dimensions 1.20 cm by 9.00 cm and resistance 0.700 N is being pulled to the right out of a region of uniform magnetic field. The magnetic field has magnitude 2.60 Tand is directed into the plane of (Figure 1) Part A At the instant when the speed of the loop is 3.00 m/s and it is still partially in the field region, what is the magnitude of the force that the magnetic field exerts on the loop? Express your answer with the appropriate units. HẢ ? FB = Value Units Submit Request Answer Part B Figure Provide Feedback R
An infinitely long, straight, cylindrical wire of radius R has a uniform current density J = Jî in cylindrical coordinates. What is the magnitude of the magnetic field at some point inside the wire at a distance r; < R from the wire's central Cross-sectional view axis? Express your answer in terms of R, r;, µo, and J. J B = Side view Assuming J is positive, what is the direction of the magnetic field at some point inside the wire? O positive z-direction negative z-direction positive r-direction negative r-direction positive p-direction negative p-direction
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The magnetic field B at all points within the colored circle of the figure (Figure 1)has an initial magnitude of 0.700 T. (The circle could represent approximately the space inside a long, thin solenoid.) The magnetic field is directed into the plane of the diagram and is decreasing at the rate of 0.0300 T/s. Figure X X X X X B X /b X 1 of 1 10.0 cm Part C What is the current in the ring if its resistance is 4.00 $? ΑΣΦ I = Submit Part D X Incorrect; Try Again; 5 attempts remaining What is the emf between points a and b on the ring? ε = Previous Answers Request Answer Submit Part E ΠΙΑΣΦ Request Answer ? IVE ΑΣΦ ? A If the ring is cut at some point and the ends are separated slightly, what will be the emf between the ends? ? V
An electron of mass m and charge -e is moving through a uniform magnetic field B (Figure 1)At the origin, it has velocity v = (vz, Vy, 0), where vz > 0 and vy > 0. A screen is mounted = (B1, 0, 0) in vacuum. Part A perpendicular to the x axis at a distance D from the origin. First, suppose B= 0. Find the y coordinate y of the point at which the electron strikes the screen. Express your answer in terms of D and the velocity components vz and vy. Throughout, you can assume that the effect of gravity is negligible. • View Available Hint(s) Figure 1 of 1 y = y B Part B Now suppose Bx > 0, and another electron is projected in the same manner. Which of the following is the most accurate qualitative description of the electron's motion once it enters the region of nonzero magnetic field? screen The electron decelerates before coming to a halt and turning around while always moving along a straight line
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L. B A positively charged particle is tied by a massless string and allowed to move on a smooth plane, as shown in the picture. A uniform magnetic field B = 1 T is applied perpendicular to the plane pointing down. The length of the string is L = 25 cm. The mass of the particle is m = 35 kg. The charge on this particle is q = 0.65 C. The velocity of the motion is a constant v = observing from above the plane. You can ignore friction. %3D 0.1392 m/s, in the clockwise direction when At a speed of v = 0.1392 m/s, how much is the Lorentz force (i.e. magnetic force) on the particle? (in units of Newton) Submit Answer fries 0/2 To maitain the circular motion at this speed with a radius L, the net force Fnet on the particle is pointing to the center O. How much is Fnet? (in units of Newton) Submit Answer Tries 0/2 It is strongly recommended that you draw a free body diagram to answer the next two parts of the problem. How much is the tension in the string? (in units of Newton) Submit Answer…
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