Electromagnetism Forum

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Graduate Determine the direction of magnetic field from Maxwell eqs?

  • Divergenxe
  • · Replies 1 ·
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1

High School What Test Tube/Cylinder is suitable for Faraday Effect?

  • KShah423
  • · Replies 3 ·
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3

Graduate Electric dipoles and a magnetic dipoles

  • Sofi Michaelian
  • · Replies 2 ·
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2

High School How does Gauss's Law relate to E=(2kλ)/r for an infinite line of charge?

  • stephen8686
  • · Replies 5 ·
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5

Undergrad Will capacitors react to external electric field

  • Narayanan KR
  • · Replies 3 ·
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3

Undergrad Why electrons move up if the Magnetic field is Horizontal?

  • mo0nfang
  • · Replies 2 ·
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2

Undergrad Weird thinking of electric field inside a hollow cylinder.

  • TwoEG
  • · Replies 2 ·
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2

Are these arrows indicating the spin of electrons?

  • mo0nfang
  • · Replies 3 ·
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3

Graduate Few questions about Lorentz force

  • Abdul.119
  • · Replies 4 ·
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4

High School Electrical charge, current definitions

  • Logical Dog
  • · Replies 8 ·
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8

Undergrad Properties of ideal solenoid: postulates or derivations?

  • DavideGenoa
  • · Replies 2 ·
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2

Undergrad Magnetic field strength over distance

  • Bakatota
  • · Replies 1 ·
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1

Graduate Electric field strength with distance

  • spaghetti3451
  • · Replies 1 ·
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1

Graduate Faraday cage in electrodynamics (with currents)

  • greypilgrim
  • · Replies 3 ·
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3

High School Coulomb's Law: Maximum Force & Distance?

  • Mohammed Alqadhi
  • · Replies 4 ·
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4

Undergrad Does Zero Potential at a Point Imply Zero Charge Density?

  • aaaa202
  • · Replies 1 ·
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1

Undergrad Capacitive Reactance: Opposing Voltage Changes & Impedance

  • Bringitondown
  • · Replies 14 ·
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14

Graduate Can you cancel part of a permanent magnet field by spinning?

  • jfizzix
  • · Replies 4 ·
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4

Graduate Decelerating charged particle and energy conservation

  • Jakub Supel
  • · Replies 9 ·
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9

Graduate Capacitor Edge Effect: Math Analysis

  • Anastasis Pk
  • · Replies 6 ·
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6

Graduate Understanding Electric Field Screening in Materials

  • aaaa202
  • · Replies 3 ·
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3

Undergrad Magnetization and Demagnetization in Magnetic Materials

  • Low-Q
  • · Replies 2 ·
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2

Undergrad How can insulators have charge density inside?

  • edgarpokemon
  • · Replies 4 ·
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4

Graduate Explaining the Photoelectric Effect: Why Can't Classical Electromagnetism Do It?

  • alchemistf9
  • · Replies 4 ·
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4

High School How Can I Make a Small Electromagnet as Powerful as Possible?

  • Lunes
  • · Replies 7 ·
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7

Undergrad A charged particle entering a magnetic field at an angle -- is work done?

  • big_bounce
  • · Replies 5 ·
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5

High School Is the total electric field of two opposite charges 0?

  • Blockade
  • · Replies 11 ·
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11

Undergrad Moving a loop within a changing magnetic field

  • avcireis
  • · Replies 14 ·
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14

Undergrad Why Is the Exerted Force Equal and Opposite to the Electrostatic Force?

  • ewr
  • · Replies 3 ·
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3

Undergrad Photoelectric Effect: Frequency vs. Amplitude

  • rictor
  • · Replies 1 ·
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1

Graduate Electric field in an arbitrary number of dimensions

  • spaghetti3451
  • · Replies 13 ·
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13

Graduate Time-Varying Electric Field in Parallel Plate Capacitor

  • Seinfeld
  • · Replies 8 ·
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8

Undergrad What are the different kinds of charge density?

  • Blockade
  • · Replies 1 ·
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1

Undergrad Op-amps, noise and high frequency/low current input signal

  • GuitarOfWar
  • · Replies 3 ·
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3

Graduate Natural units and electron mass

  • spaghetti3451
  • · Replies 4 ·
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4

Graduate Eddy Current Brake Behavior (Accelerating From Rest)

  • SCM25
  • · Replies 3 ·
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3

Undergrad Are all electromagnetic waves affected by gravity?

  • theo1234901
  • · Replies 1 ·
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1

Graduate Varying Charge Densities with Constant Current Density

  • particlezoo
  • · Replies 6 ·
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6

Graduate Electromagnetic strength tensor

  • spaghetti3451
  • · Replies 15 ·
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15

Undergrad Kirchhoff's Law with Capacitors: Voltage, Resistance & Charge

  • Silviu
  • · Replies 3 ·
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3

High School Torque in uniform magnetic field

  • Deebu R
  • · Replies 1 ·
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1

Undergrad Converting Milligauss to Hertz: Explained

  • nmsurobert
  • · Replies 8 ·
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8

Acoustic 'beats' from mismatched musical frequencies - Comments

  • andrewkirk
  • · Replies 11 ·
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11

High School Main difference between electrostatics and magnetism

  • parshyaa
  • · Replies 7 ·
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7

Undergrad Creating an electromagnetic board for levitation

  • Brendan Staley
  • · Replies 5 ·
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5

Undergrad Poisson's Equation: Solving for φ with ρ(x)

  • aaaa202
  • · Replies 5 ·
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5

Graduate Faraday's law and motional EMF paradox

  • cnh1995
  • · Replies 46 ·
2
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46

Undergrad Stopping the Slowdown: Electricity & Electromagnetic Force

  • tejasveer
  • · Replies 1 ·
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1

Undergrad Does the eletromagnetic field exists everywhere?

  • ramzerimar
  • · Replies 8 ·
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8

Undergrad Path orientation for calculating electric potential

  • OmegaKV
  • · Replies 2 ·
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2

Undergrad Why does a kinked wire reduce data throughput?

  • greypilgrim
  • · Replies 6 ·
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6

Undergrad How to find a hollow cuboid's resistance

  • hackhard
  • · Replies 4 ·
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4

Undergrad How do electric fields create forces on particles?

  • OutOfCuriosity
  • · Replies 2 ·
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2

Undergrad Fully discharge a metal plate?

  • hackhard
  • · Replies 3 ·
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3

Undergrad Understanding Resistivity: Series or Parallel Circuit with an Inductor?

  • pierce15
  • · Replies 6 ·
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6

Undergrad How realistic is the term "ground"

  • Samson4
  • · Replies 31 ·
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31

Undergrad What Happens When You Bombard a Rubber Ball with Electrons?

  • PhysicsInNJ
  • · Replies 1 ·
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1

High School How Can I Calculate Battery Discharge Time Using a Formula?

  • abhipatil419
  • · Replies 6 ·
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6

Graduate Corona discharge current formula

  • G Cooke
  • · Replies 5 ·
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5

Undergrad What do electric field lines look like for two metal plates?

  • goodphy
  • · Replies 2 ·
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2

Graduate I would like to learn more about magnetic compression

  • chad hale
  • · Replies 11 ·
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11

Graduate Zener Diode Breakdown: Effects on PN Junction & Holes/Electrons

  • Dr. Manoj
  • · Replies 2 ·
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2

Graduate X-Ray Shielding (Scanning Electron Microscope)

  • Karido
  • · Replies 3 ·
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3

Undergrad Why does a conducting slab double a uniform incident field?

  • OmegaKV
  • · Replies 3 ·
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3

Undergrad Diamagnetism Mechanism: Questions Answered

  • gianeshwar
  • · Replies 3 ·
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3

High School Beating the physics of a railgun

  • Anthony physics
  • · Replies 2 ·
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2

Undergrad Why is the E-field inside a solid conducting sphere zero?

  • OmegaKV
  • · Replies 4 ·
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4

High School A question about electrostatic

  • edgarpokemon
  • · Replies 9 ·
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9

Graduate Charge is Quantized, so why....

  • BillhB
  • · Replies 6 ·
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6

Undergrad Static Electricity -- how does it work?

  • edgarpokemon
  • · Replies 5 ·
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5

Undergrad Does a conductor create magnetic field when moving?

  • GhostLoveScore
  • · Replies 6 ·
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6

Undergrad Charge of isolated parallel plate capacitors

  • Molar
  • · Replies 14 ·
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14

Undergrad Photoelectric Effect Saturation Current

  • embphysics
  • · Replies 24 ·
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24

Undergrad Confusion about Electro-motive force (EMF)

  • donaldparida
  • · Replies 3 ·
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3

Undergrad What causes oscillations in EM wave fields?

  • Madeledam
  • · Replies 6 ·
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6

Undergrad Discharge only one plate of a capacitor?

  • greypilgrim
  • · Replies 8 ·
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8

Undergrad Can Concrete Conduct Enough Electricity for a Shock to Be Felt?

  • hackhard
  • · Replies 1 ·
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1

Undergrad Time lag before application of force

  • americast
  • · Replies 8 ·
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8

Graduate Applied physics of current probe / generator clamps

  • JaneHall89
  • · Replies 3 ·
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3

High School Metals touching, produce EM waves

  • sv3ora
  • · Replies 7 ·
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7

Graduate Polarized Molecule Between Charged plates

  • Biodelta
  • · Replies 2 ·
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2

Undergrad Faraday-Lenz Law: Self-Induction in Magnetic Fields

  • Biker
  • · Replies 1 ·
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1

High School About Voltage, Current and Ground

  • Sangamswadik
  • · Replies 6 ·
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6

High School Energy used to bring magnets together

  • victor popa
  • · Replies 2 ·
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2

High School Uncovering the Origin of Ohm's Law

  • farid_11_22
  • · Replies 8 ·
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8

Undergrad Gauss' theorem and inverse square law

  • physics user1
  • · Replies 2 ·
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2

Undergrad Qualitative understanding of Maxwell's addition

  • Isaac0427
  • · Replies 4 ·
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4

Undergrad Spherical Capacitor: Explaining Inner Sphere Grounding

  • Molar
  • · Replies 6 ·
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6

Undergrad Gauss's law and symmetric charge distributions

  • Frank Castle
  • · Replies 11 ·
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11

Graduate Maxwell's eqs. & unification of electric & magnetic fields

  • Frank Castle
  • · Replies 9 ·
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9

High School Why are two cellophane tapes attracted when ripped apart?

  • UseAsDirected
  • · Replies 3 ·
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3

Graduate Pulling apart a charged capacitor and Poynting theorem.

  • Spinnor
  • · Replies 1 ·
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1

Graduate How are the Electrical Connections of a Scintillator Detector Configured?

  • Rajini
  • · Replies 7 ·
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7

Graduate Maxwell's Equations: Neglecting Polarization and Magnetization?

  • Isaac0427
  • · Replies 21 ·
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21

Undergrad Is there such thing as magnetic interference?

  • Guest432
  • · Replies 3 ·
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3

Undergrad Electric potential halfway between two equal but opposite charges

  • LightningB0LT
  • · Replies 11 ·
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11

Graduate Faraday's law of electromagnetism

  • Nimbus2000
  • · Replies 3 ·
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3

Undergrad Does a Conductor Inside Another Conductor Have a Constant Potential?

  • GwtBc
  • · Replies 3 ·
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3

Graduate Volume magnetization currents - derivation confusion

  • Bried
  • · Replies 9 ·
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9

Undergrad Net force in a Non-Uniform magnetic field

  • Rohit Sanjay
  • · Replies 2 ·
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2