Electromagnetism Forum

Threads

Graduate Induced Magnetic Field: Ferromagnetic Moment & Detection

  • Yoni
  • · Replies 2 ·
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2

Graduate Path of an electron from the Sun to the Earth

  • mcastillo356
  • · Replies 8 ·
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8

Undergrad Understanding the Barkhausen–Kurz tube

  • Atomillo
  • · Replies 15 ·
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15

Undergrad The 'outer surface' should be redefined when applying Gauss' law?

  • feynman1
  • · Replies 23 ·
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23

Graduate The orgin of the superposition principle of electric field

  • feynman1
  • · Replies 5 ·
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5

Graduate Maxwell-Boltzmann distribution for the simulation of a perfect gas

  • greg_rack
  • · Replies 17 ·
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17

Graduate Ambiguity when taking the Earth as a zero for electric potential

  • etotheipi
  • · Replies 8 ·
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8

Graduate Lorentz-Abraham-Dirac equation

  • Milsomonk
  • · Replies 5 ·
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5

Graduate Parameterize Radial Vector of Electric Field due to Spherical Shell

  • Cedric Chia
  • · Replies 5 ·
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5

Graduate EM waves, longitudinal EM propagation?

  • artis
  • · Replies 15 ·
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15

Graduate Max surface charge of a conductive plate

  • Bhope69199
  • · Replies 8 ·
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8

High School How does a current "know" where to go

  • xWaldorf
  • · Replies 46 ·
2
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46

High School In short circuit condition, what is wrong with following derivation

  • Theresa
  • · Replies 2 ·
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2

Undergrad Negative potential energy and capacitors

  • Andrew Wright
  • · Replies 3 ·
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3

High School What is the reality of the Electric Force & Field?

  • Achintya
  • · Replies 4 ·
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4

Undergrad Did NASA use something more efficient than a Hohmann Transfer?

  • DuckAmuck
  • · Replies 11 ·
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11

Undergrad Impact of frequency on Faraday cages

  • stanley
  • · Replies 4 ·
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4

Undergrad A (very simple) question about terminology in electrical circuits

  • nrqed
  • · Replies 7 ·
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7

Undergrad Magnetism - stability of a ring with a sphere inside it?

  • gazorpazorp
  • · Replies 3 ·
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3

Undergrad Why a steel plate can shield magnetic field?

  • w9537
  • · Replies 12 ·
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12

Undergrad Does an iron ring shield a static magnetic field?

  • greypilgrim
  • · Replies 3 ·
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3

Graduate Pressure required for water discharge

  • praveenncyr
  • · Replies 17 ·
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17

Graduate How do we show that the interior of a Faraday cage is an equipotential?

  • etotheipi
  • · Replies 10 ·
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10

Graduate Clarification on field intensity (electromagnetism)

  • kent davidge
  • · Replies 1 ·
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1

High School What is the standard definition for what an "electric source" is?

  • nineteen
  • · Replies 4 ·
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4

High School Calculating frequency of sin(x)

  • madeinusa
  • · Replies 14 ·
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14

Graduate Can we transfer the whole charge of a body to another body?

  • oliverkahn
  • · Replies 4 ·
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4

Graduate Gauss' law for a physical capacitor with finite thickness plates

  • etotheipi
  • · Replies 14 ·
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14

Undergrad How to create a uniformly charged sphere?

  • oliverkahn
  • · Replies 15 ·
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15

Graduate Maxwell-Boltzmann distribution -- Maxwell's argument

  • pellman
  • · Replies 8 ·
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8

High School Electrons @ battery negative terminal

  • wphays
  • · Replies 2 ·
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2

Graduate How is the thermal conductivity affected by magnetic field?

  • Seyit KAPLAN
  • · Replies 12 ·
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12

Undergrad Inductors in alternating circuits

  • Bilbo B
  • · Replies 5 ·
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5

Graduate Reluctance of a bar magnet circuit?

  • cmb
  • · Replies 8 ·
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8

High School Electrical potential energy questions for a battery circuit

  • Theonefrom1994
  • · Replies 4 ·
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4

Graduate Test charge velocity in Coulomb's Law

  • akhila_k
  • · Replies 3 ·
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3

Graduate Lagrangian/Hamiltonian of a charged particle

  • dRic2
  • · Replies 6 ·
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6

Graduate Magnetic fields generated by the general rotations of a charged rigid body

  • andresB
  • · Replies 1 ·
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1

Graduate How Do Magnetic and Electric Fields Interact in a Changing Environment?

  • david316
  • · Replies 10 ·
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10

Graduate Fishing for atmospheric electricity

  • Russ Edmonds
  • · Replies 8 ·
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8

Graduate What's the direction of electric field in Laguerre-Gaussian beams?

  • Bell
  • · Replies 1 ·
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1

High School Behavior of one electron choosing a path

  • danielhaish
  • · Replies 12 ·
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12

Undergrad In an LC circuit the current does no drop to 0

  • Josielle Abdilla
  • · Replies 7 ·
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7

Graduate Gauge choice for a magnetic vector potential

  • Lodeg
  • · Replies 8 ·
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8

Undergrad Intuition behind fields in Transmission lines

  • Amartansh
  • · Replies 2 ·
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2

Undergrad Magnetic Bottle and the Kinetic Energy of a Charged Particle

  • fog37
  • · Replies 8 ·
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8

Graduate Calculating the terminal velocity of a magnet falling through a copper coil

  • rayjbryant
  • · Replies 3 ·
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3

Graduate Solving Potential of a Charge Outside a Sphere with Green Functions

  • Mounice
  • · Replies 1 ·
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1

Undergrad Angular frequency of a damped oscillator

  • Tony Hau
  • · Replies 1 ·
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1

Graduate Is There an Electric Field Within the Cavity of a Polarized Hollow Conductor?

  • tade
  • · Replies 48 ·
2
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48

Graduate How can we deduce the kink effect in the electric field?

  • AhmedHesham
  • · Replies 5 ·
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5

Graduate Expressing the magnetic vector potential A-field in terms of the B-field

  • tade
  • · Replies 9 ·
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9

Undergrad Why does the current have no ##\phi## component in a toroidal coil?

  • Adesh
  • · Replies 32 ·
2
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32

Undergrad Does ECO mode in electric cars make sense?

  • somega
  • · Replies 5 ·
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5

Graduate Point Charge above an Infinite Plate

  • josh777
  • · Replies 8 ·
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8

Graduate Differing first-principle models for Maxwell-Boltzmann statistics?

  • greswd
  • · Replies 44 ·
2
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44

Undergrad Stratton-Chu solution, special case

  • Unconscious
  • · Replies 21 ·
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21

Undergrad What happens when the frequency of AC is very high?

  • Saptarshi Sarkar
  • · Replies 54 ·
2
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54

Undergrad Force between two neodymium permanent magnets

  • MigMRF
  • · Replies 5 ·
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5

Graduate Electromotive force (or E cell?) during charging and discharging

  • etotheipi
  • · Replies 19 ·
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19

Graduate Maxwell Kinetic Energy Distribution

  • TeslaPow
  • · Replies 18 ·
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18

Undergrad Maximizing Repulsive Force with an Electromagnet

  • Robertjpaul
  • · Replies 2 ·
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2

Graduate The every day use of the magnetic part in EM radiation

  • Wille
  • · Replies 6 ·
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6

Graduate Electromagnetic fluid acceleration as effective rocket propulsion?

  • Parkerrhees
  • · Replies 9 ·
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9

Undergrad Help with adding air resistance into my projectile trajectory function

  • CraterHater
  • · Replies 8 ·
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8

Graduate Calculating the energy in an EM wave

  • fisher garry
  • · Replies 39 ·
2
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39

Undergrad Cloud chamber - electron tracks? - solved

  • Merlin3189
  • · Replies 10 ·
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10

Graduate Friction is electricmagnetic force; why friction is not conserved?

  • Haorong Wu
  • · Replies 4 ·
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4

Graduate What happens to cations and electrons during and after a gas discharge event?

  • vis viva
  • · Replies 1 ·
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1

High School Which surfaces get positively charge by grabbing (static electricity)

  • danielhaish
  • · Replies 8 ·
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8

High School In electrostatics, what is meant by positive charges?

  • TheSecretPiePiece
  • · Replies 7 ·
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7

Graduate Help with the trajectory of a particle in a magnetic field

  • 1Keenan
  • · Replies 23 ·
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23

Graduate When is the flux through a coil from a bar magnet zero?

  • aliens123
  • · Replies 1 ·
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1

Graduate B field between the plates of a charging capacitor (Ampere's law)

  • FranzDiCoccio
  • · Replies 2 ·
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2

Graduate Arbitrariness of the surface involved in the displacement current

  • FranzDiCoccio
  • · Replies 2 ·
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2

Graduate What is the continuity condition for the heat flux through a boundary?

  • LordGfcd
  • · Replies 1 ·
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1

High School Is a Spark Necessary for the Production of EM Waves in the Hertz Experiment?

  • Zaya Bell
  • · Replies 18 ·
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18

Undergrad Work Done, by what on what? [electrical/mechanical]

  • vis viva
  • · Replies 14 ·
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14

Graduate Arriving at the differential forms of Maxwell's equations

  • snoopies622
  • · Replies 3 ·
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3

Undergrad Lichtenberg Figures: Positive & Negative Discharges on Plastics & Acrylic

  • Russ Edmonds
  • · Replies 2 ·
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2

Graduate Confusion about the independent variable of function in magnetostaics.

  • Adesh
  • · Replies 26 ·
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26

High School Confused about the need for passive sign conventions in sources

  • etotheipi
  • · Replies 20 ·
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20

Undergrad EM Wave - basic question on energy conservation in a wave

  • mgkii
  • · Replies 4 ·
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4

Graduate What Happens to a Charged Sphere During Field Evaporation?

  • BrandonBerchtold
  • · Replies 1 ·
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1

Graduate Boundary conditions for a purely inductive load in an AC circuit

  • FranzDiCoccio
  • · Replies 30 ·
2
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30

Undergrad Personal COMSOL challenge (EM)

  • vis viva
  • · Replies 1 ·
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1

Undergrad Why do we even need the term 'conventional current'?

  • etotheipi
  • · Replies 5 ·
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5

Graduate When is the propagation of an EM wave not reversible?

  • univector
  • · Replies 10 ·
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10

Undergrad Projects for Classic Charge Distributions

  • Albertgauss
  • · Replies 3 ·
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3

Undergrad Voltage Lab Conductive Paper Questions

  • Albertgauss
  • · Replies 17 ·
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17

Undergrad Photoelectric Effect questions to help my understanding

  • Jeff97
  • · Replies 3 ·
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3

Undergrad Inducing electric current in a wire (a comparison)

  • Mitko Gorgiev
  • · Replies 29 ·
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29

Graduate Propagation speed of Coulomb fields

  • meopemuk
  • · Replies 29 ·
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29

Graduate Electric field Difference between Electrostatics and Electrodynamics

  • fog37
  • · Replies 2 ·
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2

Undergrad Magnetic field lines and magnetic flux density

  • AlanTuring
  • · Replies 35 ·
2
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35

Graduate Putting internal resistance in series with a voltage source

  • etotheipi
  • · Replies 10 ·
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10

Graduate Electrodynamic tether on the Moon/Mars?

  • jumpjack
  • · Replies 8 ·
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8

Undergrad Does the resistance of a material vary when introduced into water?

  • Cloruro de potasio
  • · Replies 9 ·
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9

Undergrad The EMF induced in straight current-carrying conductor

  • funmi
  • · Replies 10 ·
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10

Undergrad Why does a change of magnetic flux induce an EMF?

  • funmi
  • · Replies 7 ·
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7