1. The current north magnetic pole is near the geographic North Pole, but they are not in exactly the same place. Compasses point toward the north magnetic pole. How does a compass needle help people find the direction that they are going?

1. The current north magnetic pole is near the geographic North Pole, but they are not in exactly the same place. Compasses point toward the north magnetic pole. How does a compass needle help people find the direction that they are going?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter8: Electromagnetism And Em Waves

Section: Chapter Questions

Problem 1Q

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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.

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1. The current north magnetic pole is near the geographic North Pole, but they are not
in exactly the same place. Compasses point toward the north magnetic pole. How
does a compass needle help people find the direction that they are going?
etic fields but birds, whales,

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