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Undergrad Relation between electric & magnetic fields in terms of field strength

  • richard9678
  • · Replies 41 ·
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Undergrad How does the magnetic component of an EM wave affect surroundings?

  • Boltzman Oscillation
  • · Replies 8 ·
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8

Undergrad Inductive heating and eddy currents

  • MagneticMagic
  • · Replies 60 ·
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60

Graduate Magnetic Flux vs Temperature Relationship in Ferromagnets

  • Scoopadifuego
  • · Replies 26 ·
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26

High School What parts of an EMW does a ferrite rod antenna respond to?

  • richard9678
  • · Replies 11 ·
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11

Undergrad Estimation of E-field strength at a distance from dipole antenna

  • Bobymayor
  • · Replies 4 ·
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4

Undergrad Induced Electric and Magnetic Fields Creating Each Other

  • bgq
  • · Replies 3 ·
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3

Undergrad Measuring characteristic impedance as suggested by KRAUS' book

  • iochoa2016
  • · Replies 13 ·
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13

Undergrad Magnet falling though copper pipe

  • Orthoceras
  • · Replies 59 ·
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59

Undergrad Radio waves and height gain in fading zones

  • jaumzaum
  • · Replies 8 ·
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8

Undergrad Generating eddy currents, what is the best way?

  • Stardust99
  • · Replies 1 ·
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1

Undergrad Why does an ideal voltmeter have infinite resistance?

  • Leo Liu
  • · Replies 4 ·
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4

Undergrad Dielectric breakdown voltage of air vs. Electric field in thunderstorm

  • ilovepudding
  • · Replies 4 ·
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4

Undergrad Information content in electromagnetic or gravitational waves

  • gianeshwar
  • · Replies 3 ·
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3

High School Magnetic pendulum and electric energy....

  • KedarMhaswade
  • · Replies 3 ·
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3

High School Is the Kink in the Electromagnetic Wave Responsible for Delayed Motion?

  • rudransh verma
  • · Replies 8 ·
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8

Undergrad Behaviour of electrons in a teltron tube

  • DDesulgon
  • · Replies 13 ·
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13

High School Problems I Have With Electrostatics and Pith Ball Experiments

  • AspiringEEngineer
  • · Replies 10 ·
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10

Undergrad Why in an electric circuit with only a generator the resistance R=infinity?

  • samy4408
  • · Replies 4 ·
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4

High School Basic questions regarding theory of electrical capacitance

  • HCB
  • · Replies 11 ·
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11

Undergrad Gauss' law and an object with nonuniform charge distribution

  • Leo Liu
  • · Replies 8 ·
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8

Graduate Does a DC supplied superconductive coil give off radiation?

  • binis
  • · Replies 32 ·
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32

High School Coulomb pressure and concentric spheres

  • MarkL
  • · Replies 1 ·
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1

High School Does a DC Cell or Battery Actually Supply Electrons?

  • John Mohr
  • · Replies 21 ·
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21

Undergrad Momentum conservation for EM-Field/matter interaction

  • euphoricrhino
  • · Replies 3 ·
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3

Undergrad Help with electromagnetics: the Poynting Vector and Ampere contradiction

  • thatsmessedup
  • · Replies 14 ·
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14

Undergrad Question regarding Electrical Resistivity of metal vapors

  • andrew_bak
  • · Replies 8 ·
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8

Undergrad Positive Charges: Explaining Motion Despite Net Force = 0

  • samy4408
  • · Replies 9 ·
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9

High School Birkeland Currents Collision: Effects & Consequences

  • ham61ham61
  • · Replies 10 ·
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10

Undergrad Can I Calculate the Current and Tension Produced by a Dynamo?

  • Andrea Vironda
  • · Replies 5 ·
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5

Graduate Thread about Jackson's Classical Electrodynamics 3rd edition

  • MathematicalPhysicist
  • · Replies 43 ·
2
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43

Undergrad How does the Poynting vector factor into a normal circuit?

  • rumborak
  • · Replies 29 ·
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29

High School Electric flux density and confusion about units

  • sunil36
  • · Replies 1 ·
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1

Undergrad How to define infinite extent elements in COMSOL?

  • feynman1
  • · Replies 6 ·
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6

High School Electric flux -- Which of these three definitions is correct?

  • sunil36
  • · Replies 9 ·
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9

High School Magnetic Fields and Particle Movement: How Do Magnets Affect Electrons?

  • gmoney909
  • · Replies 1 ·
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1

Undergrad Do electrons flow in an electrical circuit?

  • sevensages
  • · Replies 14 ·
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14

Undergrad Perfect conductor in rotating magnetic field

  • johnfulgor
  • · Replies 6 ·
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6

Undergrad What is the origin of Lorenz force?

  • patric44
  • · Replies 5 ·
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5

Undergrad Poynting Vector in a Wire: Understanding the Flow of Energy

  • niko_.97
  • · Replies 10 ·
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10

High School What is the difference between N = Q/nF and m = Z*I*t in electrolysis?

  • Shan43
  • · Replies 4 ·
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4

High School What is Destructive Interference?

  • Quarker
  • · Replies 48 ·
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48

Undergrad Resistance of a bulb 100 W, 230 V

  • Prannoy Mehta
  • · Replies 16 ·
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16

Graduate Maxwell's Equations, Dielectrics, Auxiliary Fields D and H

  • fog37
  • · Replies 16 ·
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16

Graduate Compactness and complexity in electrodynamics

  • Couchyam
  • · Replies 4 ·
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4

Undergrad Observing Emission Spectra from Computer Screens

  • Luxdot
  • · Replies 2 ·
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2

Undergrad Guidance Requested on Inductance Formula for Solenoid

  • warhammer
  • · Replies 2 ·
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2

Undergrad NMR Remote Sensing: Does US Army Detect Buried Weapons?

  • seanscon
  • · Replies 2 ·
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2

Undergrad How do submarines communicate with radio waves?

  • ergospherical
  • · Replies 36 ·
2
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36

Undergrad Check out this YouTube video on EM waves in free space

  • LarryS
  • · Replies 7 ·
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7

Undergrad Transferring static charge from a Wimshurst machine to a foil pipe

  • manicmind
  • · Replies 5 ·
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5

Undergrad Where is Laplace's Equation Valid in Different Domains?

  • yucheng
  • · Replies 1 ·
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1

Undergrad Motional EMF induced between the ends of the rotating rod

  • VVS2000
  • · Replies 9 ·
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9

Undergrad EM Power transmitted from one region to another (normal incidence)

  • Fernandopozasaura
  • · Replies 6 ·
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6

Undergrad Question about electromagnetic spectrum and solar cells

  • willislinn54
  • · Replies 4 ·
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4

Graduate What is physical meaning of the EM force density?

  • pellman
  • · Replies 5 ·
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5

High School Why does an inductor discharge?

  • versine
  • · Replies 2 ·
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2

High School Why does charge oscillate in an electric dipole antenna?

  • versine
  • · Replies 3 ·
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3

Undergrad Help with FLP argument of non-uniformly distributed surface charges

  • euphoricrhino
  • · Replies 2 ·
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2

High School To confirm if I am correct about the role of voltage in a circuit

  • M3D1
  • · Replies 13 ·
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13

Undergrad Electric field due to polarized object

  • VVS2000
  • · Replies 4 ·
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4

Undergrad Energy Flow From Battery to the Light Bulb

  • Dario56
  • · Replies 16 ·
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16

Graduate Angularly Propagating Modes In a Cylindrical Waveguide

  • Twigg
  • · Replies 5 ·
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5

Undergrad What's the field strength and pattern rules for bar magnets attached?

  • pkc111
  • · Replies 1 ·
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1

High School Magnetic force driving a small iron ball

  • Elementrist
  • · Replies 4 ·
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4

High School Permanent magnets and energy question

  • Glenn G
  • · Replies 16 ·
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16

Graduate Why are only TM waves allowed in this geometry? (Planar interface)

  • Twigg
  • · Replies 0 ·
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0

Undergrad Divergence of the Electric field of a charged circular ring

  • bob012345
  • · Replies 12 ·
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12

Graduate Magnetic Resistance Exercise Bike Theory Question

  • JustRob
  • · Replies 14 ·
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14

Undergrad How Do Dielectrics Influence Electric Flux Density in Electromagnetic Theory?

  • bboo123
  • · Replies 5 ·
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5

High School Conductors in the triboelectric series

  • KV789
  • · Replies 2 ·
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2

Undergrad Average field inside spherical shell of charge

  • chimay
  • · Replies 3 ·
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3

Undergrad Electric Field Intensity: Intersecting E-fields Explained

  • SHASHWAT PRATAP SING
  • · Replies 16 ·
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16

Undergrad Explaining Current Behavior in an LC Circuit

  • lukka98
  • · Replies 6 ·
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6

Undergrad Can a One Direction Transformer Prevent Reverse Induction in Primary Coil?

  • artis
  • · Replies 21 ·
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21

Undergrad Electric field of uniformly polarized cylinder

  • Felesinho
  • · Replies 5 ·
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5

Undergrad Motion of a charged particle -- Changes in KE and PE?

  • aaronll
  • · Replies 9 ·
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9

Undergrad Why does increasing resistance in a conductor decrease power dissipation?

  • aaronll
  • · Replies 7 ·
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7

Undergrad Drude model with and without an electric field

  • aaronll
  • · Replies 3 ·
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3

Graduate Faraday effect breaks photon interaction laws

  • dmerrett
  • · Replies 4 ·
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4

Graduate Explain how a magnet can store up 200 times more energy for 24 hrs.

  • gary350
  • · Replies 2 ·
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2

High School Triboelectric charging vs charging by conduction

  • versine
  • · Replies 2 ·
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2

High School Formulas for the alternating current and voltage

  • wolly
  • · Replies 2 ·
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2

Graduate Photon-photon interaction, EM frequency overlap

  • artis
  • · Replies 20 ·
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20

Undergrad How do point charges in a conductor move and stop?

  • feynman1
  • · Replies 82 ·
3
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82

Undergrad Apparent Poynting vector contradiction

  • frustrationboltzmann
  • · Replies 2 ·
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2

Undergrad Build Setup to Create Electric Damping Force

  • Malamala
  • · Replies 7 ·
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7

High School EM radiation creation within stars

  • NeilHa201
  • · Replies 3 ·
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3

Undergrad Charge in RLC circuit when starting charges are 2Q and Q

  • phantomvommand
  • · Replies 32 ·
2
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32

Undergrad Is the current related to a path or to potential difference?

  • lukka98
  • · Replies 4 ·
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4

High School Electromagnetic force of Electrons

  • Next223
  • · Replies 15 ·
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15

Undergrad Electron two-slit experiment in classical electromagnetism

  • AndreiB
  • · Replies 34 ·
2
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34

Undergrad Electric Potential -- Is my understanding correct?

  • guyvsdcsniper
  • · Replies 6 ·
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6

Undergrad Classical electron uncertainty

  • AndreiB
  • · Replies 14 ·
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14

Undergrad Why are field lines parallel in a uniform field?

  • jackiepollock
  • · Replies 3 ·
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3

Undergrad Induction heating vs Current heaing

  • artis
  • · Replies 1 ·
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1

Undergrad Electronics experiment boards -- What experiment can I do with these?

  • VVS2000
  • · Replies 4 ·
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4

High School EM Radiation Amplitude: Is Peak Related to Intensity?

  • jeremyfiennes
  • · Replies 3 ·
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3

Undergrad Opaque-wall-with-hole argument from Feynman lectures

  • euphoricrhino
  • · Replies 2 ·
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2

Undergrad Is the new Ampère exactly the same as the old Ampère?

  • dextercioby
  • · Replies 3 ·
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3