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Choose the best description of a magnetic field line - Answers.com


A magnetic field line shows the direction a compass needle would point.

Magnetic Field Lines - Boundless


Learn more about magnetic field lines in the Boundless open textbook. ... Magnetic field lines are defined to have the direction that a small compass points when .... http://www.boundless.com//physics/definition/magnetic-field-lines Boundless ...

Q: How can I determine the positive and negative sides of a magnet?


Magnetic fields have field lines, which begin at the north pole of a magnet. ... Choose the Best Description of a Magnetic Field Line · Rejuvenate a Magnet · Make ...

Introduction to Magnetic Fields - MIT


Figure 8.1.4 Magnetic field lines due to an infinite wire carrying current I . ... Figure 8.2.1 The definition of the magnetic force by the vector cross product ..... We shall choose our zero point for the potential energy when the angle between the.

Magnetic Fields - Astronomy Notes


May 11, 2013 ... Magnetic ``field lines'' are imaginary lines used to describe the ... Photography of Earth (choose "Aurora" for the Geographic Region) .... One thing is for sure, scientists love a good puzzle and will work hard at trying to solve it.

Magnetic Math - NASA


Cover: Diagram of magnetic field lines of Earth modeled by Dr. Gary .... problems can be used to enhance understanding of the mathematical concept, or as a good ... strength of a magnetic field in terms of its mathematical description from a ...... Students should pick one field line from a magnetic pole, and follow it to its ...

Magnetic Poles: Definition & Shifts - Video & Lesson Transcript ...


Jun 14, 2015 ... The magnetic field surrounding the magnet and the force it exerts are depicted using curved lines with arrows called magnetic field lines.

electromagnetism - Can magnetic fields be redirected and focused ...


Nov 18, 2011 ... Yes, it is possible to guide magnetic field lines using a shaped magnetic material. ... Or would things like mumetal work best? ... that will interact with the magnetic field, which is, by definition, a magnetic material). ... magnetic fields to make neurons fire (which there is) would it be possible to pick and choose ...

electrostatics - Why does the density of electric field lines make ...


Oct 28, 2013 ... Field lines draw all of their validity from Gauss's law for the .... enter image description here ... if you pick your spacings so that the local density of field lines reflects ..... only in visualisations since they are good at conveying qualitatively ... However for magnetic fields there are a finite number of fi...

Q: What is a magnetic field? | Ask a Mathematician / Ask a Physicist


Nov 3, 2010 ... The rules about conservation of magnetic field lines, for example, fall out of conservation of charge and momentum. ... of the best physicists was exactly this: please explain me the steps from ... What a lovely explanation of relativity, you have a gift there. ..... Q: Why does light choose the “path of least time”?

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What is the best description of a magnet - Answers.com


Something that attracts iron ... What is a good description of magnets would be? things that can attract ... A magnetic field line shows the direction a compass needle would point. Laney Lynch.

What is magnetic field? - Definition from WhatIs.com


A magnetic field is generated when electric charge carriers such as electrons move ... The geometric shapes of the magnetic flux lines produced by moving charge carriers ... An electromagnet provides a good example. ... (the poles of the magnet) can be such that the electromagnet can be used to pick up and move cars.

Experiment 5: Magnetic Fields of a Bar Magnet and of the Earth


Part 1: Constructing Magnetic Field Lines of a Bar Magnet. Tape a piece of .... component of the magnetic field at the sensor (see description below). When the plot ... If you choose axial, the sensor will measure the component of the magnetic field along the axis of ... best you can, with a ruler or pencil on the tabletop or floor.