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- ...hysics]], a '''magnetic field''' (commonly denoted by '''H''') describes a magnetic field (a vector) at every point in space; it is a [[vector field]]. In non-rela .... The [[magnetic flux density]] '''B''' is usually seen as the fundamental magnetic field, see the article about '''B''' for more details about magnetism.9 KB (1,428 words) - 08:19, 1 April 2011
- #Redirect [[Magnetic field]]28 bytes (3 words) - 09:33, 20 May 2008
- 242 bytes (29 words) - 09:53, 7 December 2022
- 133 bytes (15 words) - 02:53, 5 July 2008
- 285 bytes (32 words) - 15:44, 22 June 2008
- Auto-populated based on [[Special:WhatLinksHere/Magnetic field]]. Needs checking by a human.1 KB (180 words) - 11:54, 31 December 2022
Page text matches
- ...etizability]] as a proportionality between [[magnetic flux density]] and [[magnetic field]] in a magnetic material or medium.200 bytes (24 words) - 11:54, 19 April 2011
- ...commonly used to create magnetic field gradients perpendicular to the main magnetic field.175 bytes (24 words) - 23:52, 3 September 2009
- {{r|Magnetic field}}297 bytes (37 words) - 00:13, 1 December 2010
- ...an electromagnetic field. This electromagnetic field opposes the applied magnetic field. The opposition of the two fields combined with the relative resistance of663 bytes (97 words) - 01:45, 12 February 2010
- ...s a vector property that determines the torque the object experiences in a magnetic field tending to align its moment with the field.423 bytes (72 words) - 10:27, 21 December 2010
- ...field]]. If the charges are moving through a conducting plate immersed in magnetic field perpendicular to their motion then they will tend to congregate on one side535 bytes (82 words) - 20:34, 16 April 2009
- ...e, functional abilities that begin with perception of the direction of the magnetic field locally passing through them407 bytes (56 words) - 09:42, 6 July 2011
- Fourier series of the following real vector fields: electric field, magnetic field, and vector potential.141 bytes (18 words) - 03:20, 5 December 2009
- {{r|Magnetic field}}219 bytes (26 words) - 10:22, 21 December 2010
- {{r|Magnetic field}}708 bytes (98 words) - 15:33, 13 December 2010
- #Redirect [[Magnetic field]]28 bytes (3 words) - 09:33, 20 May 2008
- *[[Magnetic field]] {{r|Magnetic field}}898 bytes (114 words) - 13:58, 13 December 2010
- ...termining the [[Lorentz force]] upon a moving charge, and related to the [[magnetic field]] '''H'''.196 bytes (24 words) - 09:39, 18 April 2011
- ...''' of the nuclear spin states (generally by introducing the sample into a magnetic field) ...ied by changes in the magnetic field usually in the form of time dependent magnetic field gradients.2 KB (317 words) - 00:44, 19 October 2008
- {{r|Magnetic field}}849 bytes (109 words) - 21:28, 11 January 2010
- A property that magnetic nuclei have in a magnetic field and applied electromagnetic (EM) pulse, which cause the nuclei to absorb en225 bytes (35 words) - 21:37, 3 September 2009
- Describes the behavior of moving charges in a magnetic field.97 bytes (13 words) - 08:54, 24 January 2009
- {{r|Interplanetary magnetic field}}739 bytes (99 words) - 03:25, 3 October 2009
- Gives the magnetic field at some distance of an electric current-carrying wire.115 bytes (15 words) - 19:53, 21 March 2011
- {{r|Building blocks: solvent suppression - pulsed magnetic field gradients and RF ||***}} {{r|Magnetic field}}2 KB (230 words) - 07:42, 30 July 2009
- {{r|Magnetic field}}811 bytes (92 words) - 00:09, 1 December 2010
- ..., i.e., a compass needle will align itself along (be tangent to) the green magnetic field line in the figure, pointing in the same direction as the green arrow.965 bytes (153 words) - 12:51, 11 June 2009
- Auto-populated based on [[Special:WhatLinksHere/Magnetic field]]. Needs checking by a human.1 KB (180 words) - 11:54, 31 December 2022
- * [[Gauss (unit)]] Gaussian unit of magnetic field strength127 bytes (15 words) - 12:20, 31 May 2009
- {{r|Magnetic field}}830 bytes (107 words) - 18:10, 11 January 2010
- ==Magnetic field effects==3 KB (302 words) - 04:54, 21 March 2024
- {{r|Magnetic field}}1 KB (148 words) - 16:47, 11 January 2010
- ...th’s magnetic fields is caused by reversals in the polarity of the Earth's magnetic field, the Earth’s magnetic poles literally change locations. These reversals o ...on which is related to changes or reversals in the polarity of the Earth's magnetic field.4 KB (503 words) - 10:10, 19 July 2008
- Electromotive force induced by a varying magnetic field; described by Faraday's law of induction.133 bytes (17 words) - 07:45, 5 July 2008
- [[Planet Earth]] is surrounded by a [[magnetic field]].<ref name=SkyGraham/> The magnetic field captures [[charged particles]] from [[outer space]], and diverts them to th2 KB (263 words) - 01:35, 1 September 2009
- * [[Oersted (unit)]], cgs unit of magnetic field strength.144 bytes (17 words) - 12:42, 31 May 2009
- ...lities that begin with perception of the direction and/or intensity of the magnetic field locally passing through them.<ref name=wilts2012>Wiltschko R, Wiltschko W. ...heir way around in the world depends on correctly interpreting the earth's magnetic field.<ref name=gould2005/></p>2 KB (265 words) - 22:37, 6 May 2012
- ...he vector '''B''' is the magnetic induction (in vacuum proportional to the magnetic field '''H''') at the position d'''S''', the dot indicates a [[dot product]] betw3 KB (415 words) - 13:04, 29 March 2009
- ....edu/education/tutorials/magnetacademy/cryogenics/index.html National High Magnetic Field Laboratory -Cryogenics for English Majors]365 bytes (53 words) - 02:47, 14 December 2009
- ...periodic in space and time, of an electric field '''E'''('''r''',t) and a magnetic field '''B'''('''r''',t); a stream of electromagnetic waves, referred to as elect304 bytes (46 words) - 16:05, 8 March 2010
- {{r|Magnetic field}}636 bytes (80 words) - 15:43, 11 January 2010
- {{r|Magnetic field}}679 bytes (86 words) - 16:01, 11 January 2010
- {{r|Magnetic field}}1 KB (160 words) - 13:38, 25 April 2011
- 160 bytes (23 words) - 07:23, 10 July 2008
- ...e susceptible to electrical fields are heated by an alternating or varying magnetic field from the use of alternating current (AC).203 bytes (30 words) - 12:22, 16 June 2008
- ...ic field|Lorentz force law]] and is perpendicular to both the wire and the magnetic field. ...illustrates this principle for a single current loop as ''armature'' in a magnetic field provided by the north and south poles of a magnet. The Lorentz force at the3 KB (402 words) - 12:34, 12 March 2011
- ...ay is one of the simplest coil designs that can produce a fairly uniform [[magnetic field]] gradient transverse to its cylindrical coil former.201 bytes (31 words) - 05:11, 2 February 2009
- A scientific instrument used to measure the strength and/or direction of the magnetic field in the vicinity of the instrument.163 bytes (24 words) - 03:50, 4 September 2009
- The integral of a magnetic field over a closed path is equal to the conduction current through the surface b163 bytes (26 words) - 08:19, 20 June 2008
- ...ugh an electromotive force <math>\mathcal{E}</math> induced by a change in magnetic field '''B'''. For constant surface ''S'' and uniform rate of decrease of |'''B' * The [[oersted]] is the Gaussian unit of strength of a [[magnetic field]] |'''H'''|. The oersted is defined by means of an electric current giving2 KB (269 words) - 15:51, 31 October 2021
- ...e wound around a cylinder; when a direct current passes through the wire a magnetic field is generated, and the solenoid becomes an electromagnet.208 bytes (31 words) - 10:45, 21 June 2008
- ...ts direction is also restricted to certain directions in the presence of a magnetic field. In the absence of a magnetic field, it is not possible to obtain ''any'' information regarding its direction.4 KB (645 words) - 14:04, 28 March 2011
- {{r|Magnetic field}}733 bytes (94 words) - 16:47, 11 January 2010
- ...ated in the figure on the right. Recall here—see [[Biot-Savart's law#Magnetic field on axis of circular current|this article]]—that the direction of curr ...enz enunciated his law as follows: when a conducting circuit is moved in a magnetic field, the induced current flows in such a direction that the force on it tends t2 KB (388 words) - 12:33, 11 June 2009
- The use of '''electromagnetic radiation''', in the presence of a '''magnetic field''', to obtain information regarding '''transitions between different nuclea259 bytes (34 words) - 00:11, 19 October 2008
- {{r|Magnetic field}}1 KB (165 words) - 13:34, 22 April 2011
- {{r|Magnetic field}}543 bytes (69 words) - 20:28, 11 January 2010
- | title = Space Quantization in a Gyrating Magnetic Field3 KB (418 words) - 04:54, 21 March 2024
- ...'B'''-field]] (entering the expression for the [[Lorentz force]]) to the [[magnetic field|magnetic '''H'''-field]]4 KB (511 words) - 11:04, 17 April 2011
- * {{r|Earth's magnetic field| Geomagnetism}} (including [[ionosphere]], [[magnetosphere]], [[Van Allen r1 KB (154 words) - 09:35, 14 September 2013
- ..., closely related, vector fields giving the magnetic force. There is the [[magnetic field]] '''H''' and the [[magnetic induction]] '''B''', which are related (in vac3 KB (432 words) - 12:11, 11 June 2009
- {{r|Magnetic field}}1 KB (166 words) - 11:15, 24 December 2010
- ...he energy levels and greater [[polarization]] at equilibrium. The required magnetic field is usually provided by an external magnet. ...are usually lower for [[MRI]] and NMR relaxometry. The homogeneity of the magnetic field created by the primary [[magnet]] is improved by using a set of [[shimming|7 KB (1,077 words) - 11:05, 18 May 2009
- ...d may vary in time, in which case it is accompanied by a time-dependent [[magnetic field]]; the two time-dependent fields together form an [[electromagnetic wave|e ...r more electric charges other than ''q'', but it may also be caused by a magnetic field that varies in time, or by a combination of the two. The expression states6 KB (914 words) - 18:48, 30 October 2021
- In [[physics]], the '''oersted''' (symbol '''Oe''') is the unit of [[magnetic field]] strength |'''H'''| in the emu ( electromagnetic unit) and [[Gaussian unit For Gaussian units, the oersted is defined as ''the strength of the magnetic field at a distance of 1 centimeter from a straight conductor of infinite length4 KB (584 words) - 11:53, 21 September 2009
- ...the left and travels around the cylinder through the conducting wire. Two magnetic field lines are shown in blue. The magnetic induction '''B''' is a vector field t ...s made of [[iron]] or another [[ferromagnetic]] material that enhances the magnetic field.8 KB (1,392 words) - 07:40, 3 December 2009
- ...agnetic field will be created between the reader and the antenna. Once the magnetic field has provided power to the passive tag, the tag can send to the reader whate2 KB (384 words) - 19:07, 2 February 2009
- \mathbf{B} &&& \hbox{magnetic field} \\ The [[magnetic induction|magnetic field]] '''B''' is a [[divergence]]-free field and hence can be written as the [[4 KB (674 words) - 05:17, 23 February 2009
- Magnetic field gradients are controlled by an independent subsystem. Magnetic field gradients are generated by passing current through coils of appropriate geo1 KB (187 words) - 16:18, 3 April 2024
- {{r|Magnetic field}}1 KB (141 words) - 11:57, 28 July 2011
- ...ry well-known example of a divergence-free field is a [[magnetic induction|magnetic field]] '''B''', which is divergence-free by virtue of one of [[Maxwell's equat3 KB (514 words) - 02:14, 14 October 2013
- ...ng the lines of force. By means of this effect, a good visual picture of a magnetic field can easily be obtained by mapping it with iron filings: cover the magnet wi ...ented, so that their individual effects tend to cancel one another. When a magnetic field is applied to the metal, the small magnets line up parallel to the field, s7 KB (1,065 words) - 11:42, 12 October 2011
- ...etimes just the ''H''-field. In fact, some authors refer to '''B''' as the magnetic field and to '''H''' as an auxiliary field. ...ists in the neighborhood of these sources. In general the strength of the magnetic field decreases as a low power of 1/''R'', the inverse of the distance ''R'' to9 KB (1,330 words) - 16:37, 31 March 2011
- ...hysics]], a '''magnetic field''' (commonly denoted by '''H''') describes a magnetic field (a vector) at every point in space; it is a [[vector field]]. In non-rela .... The [[magnetic flux density]] '''B''' is usually seen as the fundamental magnetic field, see the article about '''B''' for more details about magnetism.9 KB (1,428 words) - 08:19, 1 April 2011
- The Lorentz force has two vector components, one proportional to the magnetic field and one proportional to the electric field. These components must be added5 KB (833 words) - 21:31, 26 March 2022
- {{r|Magnetic field}}1 KB (189 words) - 17:55, 17 April 2010
- {{r|Magnetic field}}430 bytes (56 words) - 16:55, 11 January 2010
- * [[Ampere's law]] Integral relation between magnetic field and current (forerunner of Maxwell equation).530 bytes (70 words) - 12:42, 31 May 2009
- {{r|Magnetic field}}455 bytes (59 words) - 17:03, 11 January 2010
- {{r|Magnetic field}}428 bytes (55 words) - 19:52, 11 January 2010
- ...about a hybrid technique, using inertia from massive pistons compressing a magnetic field, which keeps the hot plasma away from the reactor walls.[https://www.helion1 KB (233 words) - 14:56, 23 May 2023
- ...cular in [[electrodynamics]], '''Ampère's law''' relates the strength of a magnetic field to the electric current that causes it. The law was first formulated by [[A3 KB (510 words) - 10:16, 16 July 2008
- {{r|Magnetic field}}510 bytes (65 words) - 11:35, 31 December 2022
- {{r|Magnetic field}}826 bytes (93 words) - 16:51, 24 March 2024
- {{r|Magnetic field}}517 bytes (67 words) - 20:35, 11 January 2010
- {{r|Magnetic field}}544 bytes (67 words) - 18:17, 11 January 2010
- {{r|Magnetic field}}534 bytes (72 words) - 09:39, 6 August 2023
- ...depleted. Oxyhemoglobin is paramagnetic, which means it slightly repels a magnetic field, while deoxyhemoglobin is diamagnetic, which means it is slightly magnetic. ...ulos AP, ''et al'' |title=Functional imaging of human motor cortex at high magnetic field |journal=J. Neurophysiol. |volume=69 |issue=1 |pages=297–302 |year=1993 |4 KB (541 words) - 09:14, 20 July 2010
- {{r|Magnetic field}}545 bytes (71 words) - 15:26, 16 March 2010
- ...th>\scriptstyle \frac {1}{2}</math>. In a strong external [[magnetic field|Magnetic field]] <math>\scriptstyle {\vec B}_0</math> they tend to line up with the field. ...movement around this axis. Similarly the proton spins are preceding in the magnetic field with a characteristic frequency—the lamour frequency.5 KB (764 words) - 13:40, 28 July 2010
- {{r|Magnetic field}}624 bytes (83 words) - 11:58, 31 December 2022
- {{r|Magnetic field}}599 bytes (78 words) - 17:05, 11 January 2010
- {{r|Magnetic field}}557 bytes (71 words) - 19:09, 11 January 2010
- ...day]], who discovered in 1831 on basis of observations that a change in a magnetic field induces an electric current. This is the phenomenon of electromagnetic indu ...e circuit, which means that the work done by rotating the circuit inside a magnetic field is converted into an electric current. Thus, Faraday's law is the theoreti9 KB (1,549 words) - 12:18, 11 June 2009
- ...gnetometer''' is a scientific instrument used to measure the strength of [[magnetic field]]s. Earth's magnetism varies from place to place and differences in the Earth's [[magnetic field]] can be caused by a couple of things:9 KB (1,370 words) - 08:18, 12 September 2013
- ...he [[magnetic induction]] '''B''', the [[magnetization]] '''M''' and the [[magnetic field]] '''H''' have the same dimensions, while in SI units the dimensions are al <tr><td> <i>H</i> <td> [[magnetic field]] <td> 1 Oe → 10<sup>3</sup>/(4π) A/m...11 KB (1,527 words) - 17:15, 2 November 2021
- ...ality constant between the [[magnetic flux density]] '''''B''''' and the [[magnetic field]] '''''H''''', namely '''''B''''' = {{nowrap|μ<sub>r</sub> μ<sub>0</s ...applies only when v/c is negligible. For an accelerating point charge, the magnetic field is not described by the Biot-Savart law because there is an additional radi11 KB (1,675 words) - 17:41, 23 April 2011
- ...e rotational frequencies of the pair of nuclei with respect to the applied magnetic field.3 KB (493 words) - 19:42, 28 March 2011
- ...a [[conductor]], or [[ion]]s in a [[plasma]]. Electric current creates a [[magnetic field]], and a time-varying electric current generates an [[electromagnetic wave]711 bytes (103 words) - 08:37, 21 August 2011
- ...l [[magnetic field]], the spins align themselves with the direction of the magnetic field and precess in relation to the field. Applying a radio-frequency pulse perp ...ield is a function of the external magnetic field strength, increasing the magnetic field strength of MRI spectrometers enhances the observed signal-to-noise ratio.10 KB (1,408 words) - 04:54, 21 March 2024
- ...avart]] describes the [[magnetic induction]] '''B''' (proportional to the magnetic field '''H''') caused by a direct electric current in a wire. Biot and Savart int ...Historically, this is the case considered by [[Biot]] and [[Savart]]. The magnetic field ''H'' at a distance ''R''11 KB (1,702 words) - 13:31, 22 April 2011
- ...y similar way, a displacement current (a changing electric field) causes a magnetic field encircling it. It is the displacement current in the extension of Ampère's where '''H'''('''r''') is the [[magnetic field]]. Since the divergence of the curl is always zero,6 KB (972 words) - 16:59, 27 October 2021
- ...the name [[Oersted (unit)|oersted]] was adopted for the physical unit of [[magnetic field]] strength |'''H'''| in the [[Gaussian units|Gaussian system of units]]. ...A bar magnet is hung above a wire carrying the direct current ''i''. The magnetic field '''B''' is in [[right-hand screw rule|the direction of the turn of a screw5 KB (738 words) - 06:22, 12 September 2013
- ...Hz, 40 MHz) induced plasma generated by an induction coil that produces a magnetic field (H). For typical laboratory uses, the power requirement is between 1 and 51 KB (164 words) - 11:38, 18 May 2010
- ...[crust (geology)|crust]] which are remnants of a presumed former planetary magnetic field which is now long extinct. ...t]]s become 'overloaded' with energetic particles, which then cascade down magnetic field lines and collide with Earth's upper atmosphere.12 KB (1,940 words) - 11:46, 2 February 2023