A square loop carrying a current I is placed in the x-y plane as shown in the figure. A uniform magnetic field B is applied in the positive x-direction. Which statement(s) in what follows is/are correct? B. a. The initial torque on the loop is directed along the +y direction. b. The initial force on the left edge of the square is directed along the +z direction. c. The magnitude of the magnetic moment of the loop increases if the field B is increased. d. The magnitude of the initial torque increases if the area of the loop is made larger. e. The magnitude of the total force on the loop increases if the current is increased. a, b and d. b and e. c and d. a, b and c. All of them are correct. None of the options above.

A square loop carrying a current I is placed in the x-y plane as shown in the figure. A uniform magnetic field B is applied in the positive x-direction. Which statement(s) in what follows is/are correct? B. a. The initial torque on the loop is directed along the +y direction. b. The initial force on the left edge of the square is directed along the +z direction. c. The magnitude of the magnetic moment of the loop increases if the field B is increased. d. The magnitude of the initial torque increases if the area of the loop is made larger. e. The magnitude of the total force on the loop increases if the current is increased. a, b and d. b and e. c and d. a, b and c. All of them are correct. None of the options above.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section: Chapter Questions

Problem 72PQ

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

A square loop carrying a current I is placed in the x-y plane as shown in the figure. A uniform magnetic field B is applied in the positive x-direction. Which statement(s)
in what follows is/are correct?
B
a. The initial torque on the loop is directed along the +y direction.
b. The initial force on the left edge of the square is directed along the +z direction.
c. The magnitude of the magnetic moment of the loop increases if the field B is increased.
d. The magnitude of the initial torque increases if the area of the loop is made larger.
e. The magnitude of the total force on the loop increases if the current is increased.
a, b and d.
b and e.
c and d.
a, b and c.
All of them are correct.
None of the options above.

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