Chapter 29: Q59P (page 861)
What is the magnitude of the magnetic dipole moment of the solenoid described in Problem 51?
Short Answer
The magnitude of the magnetic dipole moment is.
Chapter 29: Q59P (page 861)
What is the magnitude of the magnetic dipole moment of the solenoid described in Problem 51?
The magnitude of the magnetic dipole moment is.
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Get started for freeFigure 29-32 shows four circular Amperian loops (a, b, c, d) and, in cross section, four long circular conductors (the shaded regions), all of which are concentric. Three of the conductors are hollow cylinders; the central conductor is a solid cylinder. The currents in the conductors are, from smallest radius to largest radius, 4 A out of the page, 9 A into the page, 5 A out of the page, and 3 A into the page. Rank the Amperian loops according to the magnitude ofaround each, greatest first.
Figure 29-52 shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents in the directions indicated. Initially all four wires are atfrom the origin of the coordinate system, where they create a net magnetic field .(a) To what value of xmust you move wire 1 along the xaxis in order to rotate counter clockwise by ? (b) With wire 1 in that new position, to what value of xmust you move wire 3 along the xaxis to rotate byback to its initial orientation?
Figure 29-67 shows a cross section across a diameter of a long cylindrical conductor of radius carrying uniform current . What is the magnitude of the current’s magnetic field at radial distance (a) 0 (b) 1.00 cm, (c) 2.00 cm (wire’s surface), and (d) 4.00 cm?
Figure 29-27 shows cross-sections of two long straight wires; the left-hand wire carries current i1 directly out of the page. If the net magnetic field due to the two currents is to be zero at point P, (a) should the direction of current i2 in the right-hand wire be directly into or out of the page, and (b) should i2 be greater than, less than, or equal to i1?
A solenoid long and in diameter carries a current of . The magnetic field inside the solenoid is . Find the length of the wire forming the solenoid.
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