Electromagnetism Forum

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High School What Happens to Voltage at Absolute Zero?

  • Foxcroft
  • · Replies 11 ·
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11

Graduate Electron-impact ionization cross section

  • Jaka
  • · Replies 1 ·
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1

High School Electricity in wire (again) - concept question

  • xifus
  • · Replies 10 ·
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10

Undergrad Electric Potential: Finding Given Radius & Charge Density

  • breeniu123
  • · Replies 1 ·
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1

Undergrad Inverse square law and magnetic fields

  • kamikaze762
  • · Replies 4 ·
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4

Undergrad What keeps electrons on wires?

  • Zorodius
  • · Replies 6 ·
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6

Undergrad How on earth is this propelled?

  • hannah93
  • · Replies 3 ·
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3

Undergrad Seting up the Integral: Electric Potental Energy

  • cogman
  • · Replies 1 ·
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1

Undergrad Brain Electric Pulses: What Happens to the Pulse?

  • jobyts
  • · Replies 2 ·
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2

Graduate How Does \(\oint E.dl = -\int dB/dt .dS\) Illustrate Electromagnetic Induction?

  • darkwhite87
  • · Replies 4 ·
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4

Graduate Questions on reversed Coulomb force.

  • Robert Clark
  • · Replies 1 ·
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1

Undergrad Why Does a Battery's EMF Seem Constant Over Time?

  • Hunt_
  • · Replies 4 ·
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4

Undergrad Energy transfers in an electric circuit

  • steeve_wai
  • · Replies 3 ·
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3

Graduate Does a rotating ring of uniform charge constitute a current?

  • Zorodius
  • · Replies 8 ·
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8

Graduate Net Electric Field Defined at a Point with Charges Present

  • pardesi
  • · Replies 9 ·
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9

High School Measuring underwater electricity

  • Kramjit
  • · Replies 3 ·
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3

High School Copper wires are more conductive than aluminium wires?

  • kthouz
  • · Replies 3 ·
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3

Undergrad Parallel plate capacitor (voltage and charge relative to distance)

  • swarm
  • · Replies 2 ·
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2

Undergrad Electric Potential: Alpha Particle Speed Calculation

  • latour1973
  • · Replies 1 ·
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1

Graduate How to Calculate Magnetic Field Strength of Helmholtz Coils?

  • jgrossm1
  • · Replies 6 ·
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6

High School Bad conducter of electricitey for metals

  • Killer slug
  • · Replies 4 ·
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4

Graduate Mass Equals Frequency: Explained

  • Magical
  • · Replies 2 ·
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2

Undergrad Does a.c. pass through a dielectric in a capacitor?

  • Mr Virtual
  • · Replies 6 ·
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6

Undergrad Coloumb's Law & Uniformly Charged Shells

  • pardesi
  • · Replies 14 ·
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14

Undergrad What is the difference between the B and H fields?

  • Maxwell's Beard
  • · Replies 8 ·
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8

Graduate Help on Electromagnetic Induction concept

  • darkwhite87
  • · Replies 4 ·
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4

Undergrad I have a question regarding Magnetic Fields

  • Noobula
  • · Replies 2 ·
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2

Undergrad Simple Electrostatic problem with conductor

  • bobca117
  • · Replies 3 ·
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3

Undergrad Is Light Just a Disguise for Electric and Magnetic Fields?

  • pardesi
  • · Replies 2 ·
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2

Undergrad What is the Effect of Voltage Drops on Electrical Potential Energy?

  • aje8127
  • · Replies 2 ·
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2

Undergrad How To Calculate Position Two Magnets Will Attract And Lock

  • Frank Misa
  • · Replies 4 ·
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4

Graduate Magnetic Fields: Measuring Magnetic Field in a Point Inside a Volume

  • Pris
  • · Replies 1 ·
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1

Question about Magnet: Is it Stationary?

  • njama
  • · Replies 27 ·
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27

High School Voltage Measurement on Energized Capacitor: Explained for Rookies

  • rabuntjer
  • · Replies 4 ·
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4

High School Levitation Device: Is it Real or Fake?

  • Capler
  • · Replies 4 ·
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4

High School How can I control the magnetic field?

  • Ped
  • · Replies 21 ·
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21

High School Understanding some fundamentals - electrostatics

  • Z COOL
  • · Replies 1 ·
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1

High School Can a Grounded Person's Brain Still Generate Electric Charges?

  • jobyts
  • · Replies 2 ·
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2

High School Would running an electrical current through a magnet destroy the magnet?

  • lets_resonate
  • · Replies 4 ·
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4

Graduate Spin angular dipole momentum of the electrons

  • yyouth24
  • · Replies 4 ·
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4

High School Terms nodes ,loop and branches which applied to the circuits

  • momomo_mo
  • · Replies 1 ·
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1

Graduate IFRs, EM Waves & Moving at c Velocity: What's the Effect?

  • alvaros
  • · Replies 4 ·
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4

Graduate Does the Electromagnetic Space Drive Really Defy the Laws of Physics?

  • SkepticJ
  • · Replies 8 ·
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8

High School Magnet Strength: North vs South Pole

  • David Brenchley
  • · Replies 2 ·
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2

High School Energy conservation of electrons

  • yyouth24
  • · Replies 6 ·
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6

Undergrad Magnetic Dipoles: Why Do N & S Poles Remain Stationary?

  • yyouth24
  • · Replies 3 ·
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3

Graduate Question about Electromagnetic Energy

  • lugita15
  • · Replies 3 ·
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3

High School Dipole momentum of the electrons

  • yyouth24
  • · Replies 1 ·
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1

Graduate Question about Electromagnetic Forces

  • lugita15
  • · Replies 1 ·
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1

Undergrad Can a magnetic field be shielded passively?

  • mreznicek
  • · Replies 9 ·
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9

Undergrad Electronics type wants advice for this.

  • Video Eddie
  • · Replies 6 ·
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6

Undergrad How does current behave in response to changes in magnetic field?

  • stmartin
  • · Replies 7 ·
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7

Undergrad How can a conductor of uniform charge density exist

  • sumit_rai
  • · Replies 7 ·
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7

Graduate If the electrons are small tiny dipoles, how do then they refuse?

  • stmartin
  • · Replies 5 ·
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5

Graduate Electric Dipoles: Properties and Potential Solutions

  • Schrodu
  • · Replies 8 ·
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8

High School Why are the poles of a magnet stronger?

  • stmartin
  • · Replies 2 ·
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2

Graduate Negative Permeability Metamaterials: Explaining Stop Band Mechanism

  • hsuominen
  • · Replies 4 ·
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4

Undergrad Questions: Reg EM wave transmission

  • sarveshkumarv
  • · Replies 13 ·
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13

High School Electricity, eletron flow and very basic electronics

  • nubii
  • · Replies 12 ·
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12

High School Charges in conductor and insulator

  • ArielGenesis
  • · Replies 11 ·
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11

Graduate Why is the magnetic field of a wire circular?

  • Mr Virtual
  • · Replies 24 ·
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24

Undergrad Solving for Charge Distribution on Charged Aluminum Spheres

  • Gaupp
  • · Replies 3 ·
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3

High School Understanding Horizontal and Vertical Components in Moving Charges

  • stmartin
  • · Replies 2 ·
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2

Undergrad How Does Faraday's Law Apply to a Moving Loop in a Magnetic Field?

  • pardesi
  • · Replies 59 ·
2
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59

High School Magnetic Permeability Explained (Layman Terms)

  • thick0122
  • · Replies 4 ·
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4

High School What is the Actual Theory of Electricity?

  • lobe
  • · Replies 4 ·
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4

Graduate Electric field in metal cavity

  • radiogaga35
  • · Replies 6 ·
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6

High School Electron and Proton Forces: Are They Opposite? Image Analysis

  • stmartin
  • · Replies 5 ·
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5

High School Understanding Magnetic Moment: What Does It Mean?

  • captain
  • · Replies 2 ·
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2

Graduate Gravitational Charge - Equivalence between Gravitational and Inertial Mass

  • neutrino
  • · Replies 2 ·
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2

Graduate Light hitting a dielectric, increase of momentum

  • Repetit
  • · Replies 2 ·
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2

Undergrad How Can I Begin Researching Electromagnetic Levitation?

  • shireojan
  • · Replies 4 ·
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4

Undergrad Are magnetic fields capable of doing work?

  • arunma
  • · Replies 17 ·
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17

Undergrad Amplitude of EM waves in vacuum ~

  • Kazekage
  • · Replies 2 ·
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2

Graduate Continuity of Electric Field at metal-dielectric interface in capacitor

  • chuckschuldiner
  • · Replies 2 ·
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2

High School How electricity flows through your body.

  • samson123
  • · Replies 12 ·
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12

Undergrad Making an Electret to Creating Electrical Analogues of Magnets

  • TeTeC
  • · Replies 8 ·
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8

Undergrad Why can't a constant electric field be used for transmission of signl?

  • The_Thinker
  • · Replies 16 ·
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16

Graduate Why Isn't the Force Around Electrons Self-Neutralizing?

  • stmartin
  • · Replies 13 ·
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13

Undergrad What causes the electric field in a changing magnetic field?

  • pardesi
  • · Replies 2 ·
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2

Graduate What causes electrons to emit and fall in atoms?

  • arron
  • · Replies 12 ·
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12

Graduate Why can't I see magnetic fields?

  • VladYBingi
  • · Replies 19 ·
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19

Graduate Programs: solve Maxwell equations for waveguides

  • pangsiukwong
  • · Replies 3 ·
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3

High School Magnetic Stripes and reading them

  • ROM_Jeremy
  • · Replies 2 ·
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2

High School Circular Coil vs Solenoid: What's the Difference?

  • pardesi
  • · Replies 4 ·
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4

Graduate Are Moving Electric Fields Equivalent to Magnetic Fields?

  • stmartin
  • · Replies 2 ·
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2

High School Why electric field line are curved at top of two plates.

  • Aladin
  • · Replies 3 ·
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3

High School Levitation of objects by a magnetic field ?

  • phy-79
  • · Replies 7 ·
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7

Graduate Can a spherically symmetric antenna radiate?

  • Loren Booda
  • · Replies 1 ·
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1

Undergrad Are Electromagnetic Waves Constantly Changing in Amplitude?

  • Simons
  • · Replies 17 ·
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17

Graduate How is possible that the magnetic field around electron is dipole but it's one circle

  • stmartin
  • · Replies 3 ·
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3

Undergrad Can Batteries Supply 4.1e9 Volts & 870 Amps?

  • Cinimod
  • · Replies 9 ·
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9

Undergrad Lenz's Law Diagram: Understanding the Principles and Applications

  • stmartin
  • · Replies 36 ·
2
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36

Graduate Diraction of Magnetic Field Due to an Infinitely Large Current

  • pardesi
  • · Replies 4 ·
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4

High School When we say current, I, through a wire is uniform, what do we mean?

  • pardesi
  • · Replies 12 ·
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12

Undergrad Experiment: Checking Biot-Savart's Law

  • pardesi
  • · Replies 5 ·
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5

Undergrad Electromagnetic Radiation and Health

  • bassplayer142
  • · Replies 4 ·
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4

Undergrad How can I test the frequency of a vibration

  • DarkTiger
  • · Replies 8 ·
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8

Graduate Dielectric Constant: Understanding Quantum Optics in Ultra Thin Semiconductors

  • condensedmatter
  • · Replies 1 ·
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1

Graduate How Does Charge Flow in Series Capacitors Affect Electric Field Balance?

  • pardesi
  • · Replies 10 ·
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10