3. Dipole? A loop with area A and current I is in a regionof uniform magnetic field with strength B and pointingout of the page, but makes an angle of 30° with respectto the +z-axis. What is the potential energy of the loopand the magnitude of the torque it feels at the givenconfiguration (see figure).a. U = -0.5(IAB),b. U = 0.5(IAB),c. U = -0.87(IAB),d. U = 0.87(1AB),T = 0.87(IAB).T = 0.87(IAB).= 0.5(IAB).1 = 0.5(IAB).

Given: A loop with area A and current I in a region of uniform magnetic field with strength B…

Answered: 3. Dipole? A loop with area A and…

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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1. A solid cylinder, hollow cylinder, and a box, all of equal mass, are released simultaneously from the top of a slop. Which one will reach the bottom first? 2. A 4 ?C charge moves at 1.5 km/s in the x-direction when it encounters a uniform 1.4 T magnetic field oriented in the z-direction. If the charge moves in a circle of radius 12cm, how much work is done during ¼ of a revolution? A. 0 J B. 1.58 mJ C. 3.17 mJ D. 6.33 mJ
Draw a magnetic circuit with 2 coils. The 1st coil with 50 turns and the 2nd coil with 150 turns. If coil 1 carry 2 A and coil 2 carry 1 A Find: A. The total Magneto motive force when the coils adding each other and draw the flux direction. B. The total Magneto motive force when the coils opposing each other and draw the flux direction.
A circular 12-turns coil with a 6 (cm] radius lies in the z = 0 plane and carries a current of 1.2 (A] with the direction indicated on the figure. The coil is located in a region of magnetic field given by: B = 3.1 î +2.1 j+ -3.7 k (T).
4. A metal bar of mass 4m slides frictionlessly on two parallel conducting rails a distance 21 apart. A resistor R is connected across the rails and a uniform magnetic field B, pointing into the page, fills the entire region. a. If the bar moves to right at speed v, what is the current in the resistor? In what direction does it flow? b. What is the magnetic force on the bar? In what direction? c. If the bar starts out with speed vo at time t = 0, and is left to slide, what is its speed a later time t? d. The initial kinetic energy of the bar was, of course, mv,. Check that the energy delivered to the resistor is exactly mvg. 21 4 m
The diagram below shows two concentric, conducting, circular loops with currents traveling in opposite directions. If the current in the outer loop is I2 = 90.0 μA, what must be the magnitude of the current in the inner loop so that the total magnetic field at the center, C, of both loops is zero? a. 60.0 μA b. 45.0 μA c. 90.0 μA d. 75.0 μA e. 105 μA
An electron is introduced into a uniform magnetic field, Bx = 50.0 μTesla directed at right angles to the electron’s velocity vy = 5 x105 m/s. The electron subsequently moves in a circular path. What is the radius of the circular path? Select one: a. 2.84 cm b. 5.68 cm c. 56.8 cm d. 2.84 m
2. A slinky is stretched so that there is a gap of 0.95cm between each loop. The magnetic field at the center of the slinky is measured for a range of currents and a graph is plotted of B (in milli-Tesla) versus current I (in Amperes). The result is a straight line with a slope of 0.14 mT/A and an intercept of 0.024 mT. Determine the value of 4 from this result.
A cylindrical solenoid that is 40-cm long generates a uniform magnetic field of strength 1.4 T inside the solenoid when the current is 7.0 A. How many turns of a single coil are present in this solenoid? a. 40,000 turns b. 64,000 turns c. 56,000 turns d. 48,000 turns e. 32,000 turns
An electron is introduced into a uniform magnetic field, Bx = 50.0 μTesla directed at right angles to the electron’s velocity vy = 5 x105 m/s. The electron subsequently moves in a circular path. What is the radius of the circular path? Select one: a. 2.84 cm b. 5.68 cm c. 56.8 cm d. 2.84 m
Na+ B A horizontally moving positive sodium ion enters a magnetic field that points up. The magnetic force pushes the charge out of its original path. A. Into the page B. Out the page OC. To the left of the page D. There is not enough information to answer

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