In the Magnetic Field of a Currentexperiment, when we decrease thecurrent in the coil, which of thefollowing is true?a. The direction of the magneticfield of Earth does notchange but its magnitudedecreases.O b. The magnitude and directionof the coil's magnetic field atthe center change.O c. The magnitude of the totalmagnetic field at the centerof the coil increases but itsdirection does not change.o d. Both the total magnetic fieldat the center of the tangentgalvanometer and the angleof deflection of the compassdecrease.O e. Both magnitudes of themagnetic fields of the coiland Earth decrease.Sconned with ConScanner

Magnetic field at the center of the coil depends on the current. Deflection produced is depends on…

Answered: In the Magnetic Field of a Current…

In the Magnetic Field of a Current experiment, when we decrease the current in the coil, which of the following is true?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 71AP: The magnetic field between the poles of a horseshoe electromagnet is uniform and has a cylindrical...

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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

In the Magnetic Field of a Current
experiment, when we decrease the
current in the coil, which of the
following is true?
a. The direction of the magnetic
field of Earth does not
change but its magnitude
decreases.
O b. The magnitude and direction
of the coil's magnetic field at
the center change.
O c. The magnitude of the total
magnetic field at the center
of the coil increases but its
direction does not change.
o d. Both the total magnetic field
at the center of the tangent
galvanometer and the angle
of deflection of the compass
decrease.
O e. Both magnitudes of the
magnetic fields of the coil
and Earth decrease.
Sconned with ConScanner

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