Consider a 2-coil (active) detector with an alternating current that creates a changing magnetic field in an exciter coil for a metal detector. Which of the following of Maxwell's equations would best describe the detection of the lost coin under the sand at the beach from the detection coil? a. $E OA . = 9 b. $B JA = 0 ▪ -OB c. $E.al=- at d. §B • Əl = µ₁(I + €0) at Simplify the above equation, if necessary/possible

Consider a 2-coil (active) detector with an alternating current that creates a changing magnetic field in an exciter coil for a metal detector. Which of the following of Maxwell's equations would best describe the detection of the lost coin under the sand at the beach from the detection coil? a. $E OA . = 9 b. $B JA = 0 ▪ -OB c. $E.al=- at d. §B • Əl = µ₁(I + €0) at Simplify the above equation, if necessary/possible

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter23: Faraday’s Law And Inductance

Section: Chapter Questions

Problem 64P

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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

Consider a 2-coil (active) detector with an alternating current that creates a changing magnetic
field in an exciter coil for a metal detector. Which of the following of Maxwell's equations
would best describe the detection of the lost coin under the sand at the beach from the
detection coil?
a. $E.JA
=
▪
9
b. $B JA = 0
-JOB
c. $E.al=- at
d. §B • Əl = µ₁(I + €0)
at
Simplify the above equation, if necessary/possible

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