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Topic: Electric flux

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	Flux - Wikipedia, the free encyclopedia
		Except in the case of active transport, net flux is directly proportional to the concentration difference across the membrane, the surface area of the membrane, and the membrane permeability constant.
		In [ecology]], flux is often considered at the ecosystem level - for instance, accurate determination of carbon fluxes (at a regional and global level) is essential for modelling the causes and consequences of global warming.
		The flux of electric and magnetic field lines is frequently discussed in electrostatics.
	en.wikipedia.org /wiki/Flux (889 words)

	Gauss's Law
		The total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity.
		The electric flux through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field.
		The electric flux through a planar area is defined as the electric field times the component of the area perpendicular to the field.
	hyperphysics.phy-astr.gsu.edu /hbase/electric/gaulaw.html (324 words)

	[No title]
		Flux is a measure of the number of field lines passing through an area.
		If we define area as a vector, with its direction perpendicular to the surface, the electric flux is given by:
		is the angle between the electric field and the area vector.
	webphysics.davidson.edu /physlet_resources/bu_semester2/c03_flux.html (57 words)

	Gauss' Law
		The flux passing through the sides of the cube is zero since these sides are parallel to the field lines and thus do not intercept any of them.
		The total flux through the surface of the cube is the sum of the fluxes through all sides, and it is zero.
		Because the flux is proportional to the number of field lines passing through the area, we expect the flux to be proportional to the charge inside the surface.
	electron9.phys.utk.edu /phys136d/modules/m4/gauss.htm (2115 words)

	Physics Tutoring: Electric Flux (Site not responding. Last check: 2007-11-04)
		It is often simpler to find the flux through one surface of an object than through another.
		The external electric field near the surface of a charged conductor is perpendicular to the surface and has magnitude
		The electric field outside a spherical shell of charge with radius R and total charge q is directed radially and has magnitude:
	www.slcc.edu /schools/hum_sci/physics/tutor/2220/e_flux (459 words)

	Section 26.0 Introduction
		An important subject in the study of electric fields is the topic of electric flux.
		Electric flux is the product of the electric field strength and the amount of a surface area perpendicular to the field.
		For example, electric flux increases with the strength of the electric field and the amount of surface area through which it passes.
	kineticbooks.com /physics/17156/21802/sp.html (551 words)

	Multiple definitions of electric flux
		I was = taught that the units of electric flux are Coulombs, and that D = = epsilon.E, however I've now come across quite a number of sources that = don't agree with this.
		Flux is proportional to charge, and in SI units the constant of proportionality is unity therefore we say PHI=Q (flux leaving a closed surface equals the charge contained inside) and both have units of Coulombs.
		I was taught that the units of electric flux are Coulombs, and that D = epsilon.E, however I've now come across quite a number of sources that don't agree with this.
	www.pych-one.com /new-5168140-4392.html (1859 words)

	ELECTROSTATICS - LoveToKnow Article on ELECTROSTATICS (Site not responding. Last check: 2007-11-04)
		Electric Force.If a small conducting body is charged with Q electrostatic units of electricity, and placed in any electric field at a point where the electric force has a value E, it will be subject to a mechanical force equal to QE dynes, tending to move it in the direction of the resultant electric force.
		electricity of the so-called acceleration of gravity in mechanics, whilst electrification or quantity of electricity is analogous to mass.
		Dielectric constant.Since all electric charge consists in a state of strain or polarization of the dielectric, it is evident that the physical state and chemical composition of the insulator must be of great importance in determining electrical phenomena.
	www.1911ency.org /E/EL/ELECTROSTATICS.htm (11578 words)

	Maxwell’s Electromagnetic Field Equation No. 1
		The differential form of the equation states that the divergence or outward flow of electric flux from a point is equal to the volume charge density at that point.
		The lines of flux contributing to the flux density are those that leave the sphere perpendicular to the surface of the sphere.
		The equation states that the divergence of the electric flux density at a point is equal to the charge per unit volume at that point.
	www.iit.edu /~smile/guests/gsmxsec1.htm (3180 words)

	Electric Field: Electrostatics: Plus 2 Physics (Site not responding. Last check: 2007-11-04)
		The electric field strength is also given by the number of lines of force per unit area held at right angles with the lines of force.
		The electric field strength at points outside a charged sphere is to be calculated by considering the entire charge to be located at the centre of the sphere.
		The electric field strength at any point outside the sphere is inversely proportional to the square of the distance of that point from the centre of the sphere.
	www.plus2physics.com /electrostatics/study_material.asp?chapter=2 (376 words)

	Gauss' Law
		Electric flux is a measure of the number of electric field lines passing through an area.
		To calculate the flux through a particular surface, multiply the surface area by the component of the electric field perpendicular to the surface.
		For a positive charge, the electric field is in the same direction as the normal, the angle between them is 0, and the cosine is 1.
	physics.bu.edu /py106/notes/Gauss.html (1189 words)

	Magnetic Flux (Site not responding. Last check: 2007-11-04)
		Magnetic flux is the product of the average magnetic field times the perpendicular area that it penetrates.
		In the case of an electric generator where the magnetic field penetrates a rotating coil, the area used in defining the flux is the projection of the coil area onto the plane perpendicular to the magnetic field.
		The contribution to magnetic flux for a given area is equal to the area times the component of magnetic field perpendicular to the area.
	hyperphysics.phy-astr.gsu.edu /hbase/magnetic/fluxmg.html (156 words)

	UNIT 04 EXERCISES ELECTRIC FLUX AND GAUSS' LAW (Site not responding. Last check: 2007-11-04)
		The electric field vectors at the surface of the box are shown.
		Calculate the electric flux on the disk, and include the correct units.
		On the left face (3cm by 2cm) the magnitude of the electric field is 400 N/C, and on the right face the magnitude of the electric field is 1200 N/C. a) Calculate the electric flux on every face of the box.
	www.phys.ttu.edu /~batcam/Courses/semester%202/Exercises/UNIT%2004%20EXERCISES%20ELECTRIC%20FLUX%20AND%20GAUSS%27%20LAW.htm (216 words)

	Magnetism: quantities, units and relationships
		However, because the flux concentrates where the path length is shorter it is better to use the value stated by the manufacturer - 27.6 mm.
		Flux also emerges from a permanent magnet even when there are no wires about to impose a field.
		Flux, then, is a measure of the number of these lines - the total amount of magnetism.
	www.ee.surrey.ac.uk /Workshop/advice/coils/terms.html (3382 words)

	definitions (Site not responding. Last check: 2007-11-04)
		As the primary flux loop oscillates between modes it periodically enters the H-loop mode where the structure displays the characteristics of an electric dipole structure.
		Typically the neutron generation occurs at the greatest rate along the poloidal axis at the inner equator; the resultant neutron flux is utilized to enhance (by the contribution of neutrons) reactions catalyzed in the core.
		These are generated by a process the effect of which is the same as if there had been a pi/2 radian rotation of the magnetic flux density vector of an ordinary macro scale closed magnetic flux loop system around the axis of the Poynting vector which is everywhere a normal to a flux loop quasi-surface.
	www.singtech.com /definitions.html (4778 words)

	General Physics II
		If the electric field E is not perpendicular to the area, we will have to modify this to account for that.
		where E is the electric field and A is a vector equal to the area A and in a direction perpendicular to that area.
		We will consider flux as positive if the electric field E goes from the inside to the outside of the surface and we will consider flux as negative if the electric field E goes from the outside to the inside of the surface.
	www.ux1.eiu.edu /~cfadd/1360/24Gauss/Flux.html (338 words)

	Electric Flux AND Gauss’ Law (Site not responding. Last check: 2007-11-04)
		If a certain surface is immersed in a region of electric field, a measure of the number of electric field lines passing through a unit area of the surface is called the electric flux.
		3. In the general case, where the surface is in a region of non-uniform electric field, the total electric flux through the surface becomes the limiting value of this sum (as the size of the element of area shrinks to zero for the entire surface):
		Electric flux: # 20; Gauss’ Law: # 25.
	www.gpc.edu /~mokafor/gpcphysics/phys2212/Course_Notes/chapt24.htm (313 words)

	Gauss's Law (Site not responding. Last check: 2007-11-04)
		A more intuitive statement: the total number of electric field line entering or leaving a closed volume of space is directly proportional to the charge inclosed by the volume.
		If there is no net charge inside some volume of space then the electric flux over the surface of that volume is always equal to zero.
		The electric flux becomes negative when the direction of the E-field and the normal to the surface are in opposite directions relative to each other, i.e.
	www.ac.wwu.edu /~vawter/PhysicsNet/Topics/Gauss/GaussLaw.html (176 words)

	"E" Measurement Definitions
		electric displacement = electric flux density (electric flux density)
		electric flux density = C/m^2 (electric flux density; category unit)
		electric polarization = electric flux density (electric flux density)
	www.convertit.com /Go/AAAMA/Measurement/Units.ASP?Letter=E (310 words)

	Microwave & electromagnetic engineering - Electric Flux and Intensity
		Electric flux is conventionally described in terms of fictitious flow lines, originating from a positive charge distribution, and terminating on associated negative charge distributions.
		The density of the 'flux lines', or 'lines of force' per unit area, may be taken as a measure of the 'strength' of the electric field, or its intensity.
		In other words, the denser the flux lines due to a charge configuration, the more intense the electric field due to that configuration.
	www.eng-tips.com /viewthread.cfm?qid=43059 (286 words)

	Gauss's law (Site not responding. Last check: 2007-11-04)
		In the case of a spherical surface with a central charge, the electric field is perpendicular to the surface, with the same magnitude at all points of it, giving the simpler expression:
		Gauss's law can be used to demonstrate that there is no electric field inside a Faraday cage without electric charges.
		Gauss's law is the electrical equivalent of Ampère's law, which deals with magnetism.
	www.sciencedaily.com /encyclopedia/gauss_s_law (229 words)

	ELECTRIC FLUX
		In the similar way electric flux is the total number of lines of force passing through a surface.
		If the surface is placed perpendicular to the electric field then maximum electric lines of force will pass through the surface.
		If the surface is placed parallel to the electric field then no electric lines of force will pass through the surface.
	www.citycollegiate.com /coulomb4_XII.htm (134 words)

	ELECTRIC FLUX THROUGH A SPHERE
		The direction of electric field in each segment of sphere is the same i.e.
		Being a scalar quantity, the total flux through the sphere will be equal to the algebraic sum of all these flux i.e.
		The total flux through closed sphere is independent of the radius of sphere.
	www.citycollegiate.com /coulomb5_XII.htm (152 words)

	back14 (Site not responding. Last check: 2007-11-04)
		Gaussian surface - imaginary closed surface of arbitrary shape (electric field penetrates this suface).
		Electric flux through an element of surface dA whose direction is that of the outward normal to the surface:
		Total electric flux over an entire Gaussian surface (integral is over the entire closed surface)
	www.physics.usyd.edu.au /teach_res/maps/back14.htm (79 words)

	Flux Pumps - Leaders in Drum and Container Pumps since 1954 (Site not responding. Last check: 2007-11-04)
		Flux Pumps Corporation is the recognized leader in drum and container transfer pump technology.
		All Flux products are designed and manufactured to exact specifications.
		Our pumps are produced for a number of industries that include (but are not limited to) chemicals, oils, foodstuff, cosmetic and pharmaceuticals.
	www.flux-pumps.com (194 words)

	The Tom Bearden Website
		The rate of change of electric flux with respect to time through a dielectric when the applied electric field is varying.
		At electrical frequencies, when a potential is suddenly pulsed onto a coil, within a very short time the full potential may be measured across the coil, despite the infinitesimal magnitude of the initial current.
		For example, at electrical frequencies, filter 492 can be a combination of band-pass filters, tank circuits, or other circuits resonant at given frequencies, configured such that no transverse wave frequencies are able to pass through the series of filters.
	www.cheniere.org /patent%20application/claim.htm (16713 words)

	Unit 04 Pretest ELECTRIC FLUX AND GAUSS' LAW (Site not responding. Last check: 2007-11-04)
		Unit 04 Pretest ELECTRIC FLUX AND GAUSS' LAW
		Given: (1) flux is defined as the number of lines passing through a surface and (2) if a line passes through a surface enclosing a volume, it is counted as positive when it enters the volume and negative, when it leaves the volume.
		Which of the surfaces has the least flux?
	www.phys.ttu.edu /~batcam/Courses/semester%202/PRETEST/Unit%2004%20Pretest%20ELECTRIC%20FLUX%20AND%20GAUSS%27%20LAW.htm (100 words)

	Re: How do I determine what the electric flux through a sphere is? (Site not responding. Last check: 2007-11-04)
		According to Gauss' Law, in homogeneous medium the flux of electric field through a closed surface is equal to the electric charge contained in the surface divided by the permittivity.
		Therefore, if a sphere contains a point charge q, the flux of electric field through the sphere is q/epsilon.
		If the sphere does not contain charge, the flux is zero.
	www.madsci.org /posts/archives/feb2000/949934024.Ph.r.html (110 words)

	Electric Flux and n.E (Site not responding. Last check: 2007-11-04)
		Electricity and Magnetism > Electric Fields and Potentials
		Two paddles of different areas are oriented so that the shadows they cast are the same size.
		This illustrates the effect of the angle between n and E on the flux through a surface area.
	www.oberlin.edu /physics/catalog/demonstrations/em/ne.html (43 words)

	Electric Flux - compare prices, reviews and buy at NexTag - Price - Review
		Electric Flux - compare prices, reviews and buy at NexTag - Price - Review
		Found 12 matches for electric flux in All Categories
		A flux coated welding alloy used to braze steel, steel alloys, copper, brass, bronze and cast iron.
	www.nextag.com /serv/main/buyer/OutPDir.jsp?search=electric+flux (290 words)

	Educypedia, the educational encyclopedia, physics (Site not responding. Last check: 2007-11-04)
		Introductory physics course one and two dimensional motion, force, work and energy, momentum and collisions, circular motion and the law of gravity, rotational equilibrium and dynamics, solids and fluids, vibrations and waves, electric fields and potentials, current and resistance, magnetism, wave properties of light, quantum physics, atomic physics, nuclear physics
		Physics 3 physics, light, sound, heat, electricity, x-rays, alpha, beta, gamma, force, motion, newton, gravity, momentum, inertia, speed, velocity, acceleration, pressure, boyle, charles, coulomb, magnetism, oersted, static, conduction, convection, radiation, reflection, refraction, convex, concave, radioactiviry, atoms, nuclei, protons, electrons, neutrons
		Physics tutoring electricity, magnetism, and optics, animations, interactive exercises, electric flux, potential, capacitance, current, resistance, AC, DC, circuits, magnetism, magnets, induction, electromagnetism, electromagnetic, Maxwell's equations, reflection, refraction, polarization, optics, mirrors, lenses, interference, and diffraction
	users.telenet.be /educypedia/education/physicsbytopic.htm (618 words)

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