One current loop is placed inside another current loop with twice the radius as showm in figure. Each loop carries the same current The cunent in the big loop is clockwise the current in the small loop is counter clockwise. What is the direction of the magnetic field at the center of loops?

One current loop is placed inside another current loop with twice the radius as showm in figure. Each loop carries the same current The cunent in the big loop is clockwise the current in the small loop is counter clockwise. What is the direction of the magnetic field at the center of loops?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter26: Electromagnetism

Section: Chapter Questions

Problem 56A

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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

One current loop is placed inside another current loop with twice the radius as shown
in figure. Each loop carries the same current. The current in the big loop is clockwise,
the current in the small loop is counter-clockwise. What is the direction of the
magnetic field at the center of loops?
Linfen birini secin
a. Clockwise
b. Counter-clockwise
einto the page
d Out of the page
Zaro

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