Answered: 50. A paramagnetic substance, in an… | bartleby

Related questions

Question

50. A paramagnetic substance, in an external magnetic field, is thermally isolated. The field is
then removed. As a result:
A. the magnetic energy of the magnetic dipoles decreases
В.
the temperature of the substance increases
C. the magnetization decreases, but only slightly
D. the magnetization reverses direction
E.
none of the above
ans: E

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

1. A DC power line for a light-rail system carries 950 A at an angle of 33° to the Earth’s 5.00 × 10-5 T magnetic field. What is the magnitude of the force (in N) on a 125 m section of this line? 2. Consider a 150 turn square loop of wire 15.5 cm on a side that carries a 56 A current in a 1.6 T field. What is the maximum torque on the loop of wire in N⋅m? What is the magnitude of the torque in N⋅m when the angle between the field and the normal to the plane of the loop θ is 14°? 3. Consider two two long, straight, parallel, current-carrying wires, separated by a distance d = 4.5 cm, as shown in the figure. The left wire is directed out of the page with current I1, and the right wire is directed into the page with current I2. The point P is a distance d from both wires, so the wires and the point form an equilateral triangle. If both wires are carrying a current of 3.5 A, what is the magnitude of the magnetic field, in teslas, at point P? If the current from the left wire is 3.5 A…
5
13. You have the apparatus shown in Figure P21.13. A circular metal plate swings past the north pole of a permanent magnet. The metal consists of a series of rings of in- creasing radius. Indicate the direction of the current in one ring (a) as the metal swings down from the left into the magnet- ic field and (b) as the metal swings up to- ward the right out of the magnetic field. Use Lenz's law to justify your answers. Figure P21.13 Metal plate Magnet N
7. A very long thin wire produces a magnetic field of 0.002 x 10-4 T at a distance of 1.0 mm from the wire. What is the magnitude of the current? = 4 x 10-7 T.m/A) (Mo a) 1.0 mA b) 2.0 mA c) 4000 mA d) 3100 mA 8. An ideal solenoid having 200 turns and carrying a current of 2.0 A is 25 cm long. What is the magnitude of the magnetic field at the center of the solenoid? (но = 4 x 10-7 T.m/A)
a. can a deflected compass needle create its own magnetic field? b. does a metal ball moving through space create its own magnetic field? c. does a permanent magnet create its own magnetic field?
4. Some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation without surgery. A typical reed switch can be switched from one position to another with a magnetic field of 50 10 4 . × . − T What current must a wire carry if it is to produce a 5 0 10 4 . × − T field at a distance of 0.50 m?
3. An electron moving at 3.60×103 m/s in a 1.21–T magnetic field experiences a magnetic force of 2.68×10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two answers. list the smaller angle first, then next the larger angle) This is not and will not be graded
1. In the diagram below, a wire is varying a current. The magnetic field above the wire is into the paper, and the magnetic field below the wire is out of the paper, as shown. What is the direction of the current flowing in the wire? AL (6) x2 x1 12 By = ik hew, 2
4