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High School Coil + zinkplate + copperplate + 9V battery = shock

  • johann1301h
  • · Replies 2 ·
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2

Graduate Relationship between paramagnetic fields and distance

  • payarma
  • · Replies 2 ·
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2

Undergrad Electromagnetic Waves and different energy manifestations

  • GuillemVS
  • · Replies 4 ·
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4

Undergrad Why can't we use Ampere's Law?

  • Kyle Nemeth
  • · Replies 6 ·
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6

Undergrad Equilibrium state of sourceless EM field

  • Creedence
  • · Replies 11 ·
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11

Graduate Coloumb torque on a charge sphere?

  • center o bass
  • · Replies 1 ·
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1

Graduate How to theoretically derive the sideband frequency values?

  • bksree
  • · Replies 4 ·
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4

Graduate Momentum transfer between d-electrons and the nucleus in ferromagnetism?

  • metastable
  • · Replies 11 ·
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11

High School Can positive charge move between charged bodies like electrons do?

  • Anjum S Khan
  • · Replies 13 ·
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13

Graduate Capacitance of an isolated sphere - solid vs hollow

  • elisagroup
  • · Replies 1 ·
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1

Graduate How Does the Vector Potential Influence Faraday's Law of Induction?

  • bob012345
  • · Replies 6 ·
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6

Undergrad Can a Tiny Antenna Transmit Long Wavelength EM Waves?

  • lucas_
  • · Replies 33 ·
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Undergrad Electrical field outside a hollow spherical conductor

  • Noelani2306
  • · Replies 6 ·
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6

Graduate Center of mass momentum of a photon and electron system

  • e2m2a
  • · Replies 19 ·
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19

Undergrad Gauss' law in one-dimensional space

  • cedricyu803
  • · Replies 1 ·
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1

Undergrad Eddy Current Braking: Answers to Common Questions

  • Fointy
  • · Replies 1 ·
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1

Graduate Electromagnetic waves in charged/magnetic fields

  • Sophrosyne
  • · Replies 10 ·
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10

Undergrad How can a magnetic field generate a Potential Difference?

  • Muhammad Usman
  • · Replies 9 ·
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9

High School Are electrons/photons/positrons the smallest quantifiable object?

  • Trooper149
  • · Replies 3 ·
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3

Graduate Electrodynamics: divergence of E in empty space

  • Flying_Dutchman
  • · Replies 5 ·
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5

Graduate Frequency response - Hydraulic network

  • LordCatG
  • · Replies 1 ·
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1

Undergrad Question regarding the energy stored in a conductor

  • Laudator
  • · Replies 17 ·
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17

Undergrad Electromagnetic Levitation for a stationary hoverboard - How can I do it?

  • Ben Pickard
  • · Replies 4 ·
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4

Undergrad Boundary conditions and discontinuity of EM fields

  • Unconscious
  • · Replies 22 ·
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22

Undergrad The source of the electric field of a battery?

  • cele
  • · Replies 30 ·
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30

Undergrad Is this analogy of the electrodes in a battery right?

  • cele
  • · Replies 2 ·
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2

Graduate Where is the Error in My Derivation of the Magnetic Field Equation?

  • Gaussian97
  • · Replies 2 ·
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2

Undergrad Small doubt regarding electric charge

  • cptolemy
  • · Replies 14 ·
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14

Graduate Collisionless plasma hydromagnetic waves

  • math04
  • · Replies 7 ·
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7

Graduate The phase of electric and magnetic forces in a photon.

  • merlyn
  • · Replies 4 ·
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4

Graduate Why RMS for the average voltage in AC current?

  • Efeguleroglu
  • · Replies 7 ·
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7

Graduate Propagation speed of the electrostatic field

  • jeremyfiennes
  • · Replies 7 ·
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7

Graduate Effects of a static magnet on a pulsed electromagnetic field?

  • Maggz
  • · Replies 6 ·
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6

Undergrad Angle required to hit coordinates including air resistance

  • TheShermanTanker
  • · Replies 11 ·
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11

Graduate Larmor Precession and a bar magnet

  • hokhani
  • · Replies 6 ·
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6

Undergrad A capacitor with two dielectrics in series

  • artis
  • · Replies 6 ·
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6

Graduate How does the retarded scalar potential satisfy the Lorentz gauge condition?

  • kent davidge
  • · Replies 1 ·
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1

Graduate Infinite Number of Image Charges?

  • bob012345
  • · Replies 3 ·
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3

Undergrad Electric field in a circuit with a DC source

  • MarcusK
  • · Replies 2 ·
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2

Graduate How short can electromagnetic radiation become? Shorter than gamma rays?

  • Doug1943
  • · Replies 6 ·
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6

Graduate Potential Energy of an Electric Dipole

  • yinx
  • · Replies 1 ·
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1

Undergrad Discharge in a DC RC circuit and negative sign of current

  • Simpcar
  • · Replies 17 ·
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17

Undergrad The Effect of Conductors on Electric Field Lines

  • navneet9431
  • · Replies 7 ·
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7

Undergrad Question about charged disk and current loop similarity

  • bitrex
  • · Replies 1 ·
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1

Graduate Hamiltonian for Charged Particles + EM-Field

  • Cryo
  • · Replies 1 ·
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1

Graduate Usage of absorption and magnitude mode spectra in nuclear magnetic resonance

  • Leonid92
  • · Replies 1 ·
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1

Undergrad Not understanding work stored in a capacitor

  • yosimba2000
  • · Replies 6 ·
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6

Graduate Ending global warming with Maxwell's demon

  • MrFrety
  • · Replies 9 ·
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9

Graduate Why a charged sphere whose radius oscillates in and out won't radiate?

  • JD_PM
  • · Replies 6 ·
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6

Graduate Finding Electric Potential of concentric shells

  • ltkach
  • · Replies 1 ·
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1

Undergrad Charge accumulation on a capacitor

  • nbsmith
  • · Replies 1 ·
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1

Undergrad Plasma ball radio-frequency energy

  • Taulant Sholla
  • · Replies 3 ·
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3

Undergrad Why don't electric motors use exciter coils like generators do?

  • JeffEvarts
  • · Replies 8 ·
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8

Undergrad Clarification of electric potential difference

  • keroberous
  • · Replies 6 ·
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6

Graduate Why doesn't an electron influence itself in Maxwells theory?

  • DerHutmacher
  • · Replies 3 ·
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3

Graduate Work required to get current going

  • Pushoam
  • · Replies 1 ·
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1

Graduate Understanding Continuity Equation & Conservation Laws

  • Pushoam
  • · Replies 7 ·
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7

Undergrad What forces are acting on electron in a circuit?

  • Eugene567
  • · Replies 2 ·
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2

Graduate Problems with the current design of ellipsometers

  • Grambo777
  • · Replies 11 ·
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11

Graduate Electrodynamics, Curl of P and D

  • guiablo
  • · Replies 1 ·
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1

Undergrad Electron Gun Design - Can Positive Voltage Work?

  • chucrut
  • · Replies 2 ·
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2

Graduate Why does a magnet above a superconductor stop spinning?

  • Idunno
  • · Replies 9 ·
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9

Undergrad Why the work done is negative when bringing 2 opposite charges together?

  • Hawkingo
  • · Replies 24 ·
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24

Undergrad Magnet's attraction force on a piece of iron

  • guideonl
  • · Replies 1 ·
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1

Graduate Energy Density of Electric Fields: Is it the Sum of All Electrons?

  • Herbascious J
  • · Replies 7 ·
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7

Graduate Why am I getting Maxwell's second equation wrong?

  • Beelzedad
  • · Replies 9 ·
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9

Graduate Which Form of Maxwell's Equations is More Useful? (Integral versus Differential)

  • kent davidge
  • · Replies 3 ·
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3

Undergrad RC charging - intuition behind equal dissipated energies?

  • coquelicot
  • · Replies 11 ·
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11

Graduate The relation between imaginary part of permittivity to conductivity

  • uzi kiko
  • · Replies 1 ·
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1

Graduate Do electric fields have their own separate inherent charge?

  • Herbascious J
  • · Replies 3 ·
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3

Undergrad Strange question about cancelling electric fields

  • Herbascious J
  • · Replies 9 ·
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9

Graduate Current Transformer Proton Accelerator

  • BrandonBerchtold
  • · Replies 5 ·
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5

Graduate Sphere falling in countercurrent liquid flow

  • Bakery87
  • · Replies 1 ·
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1

Graduate Frequency to temporal period conversion

  • roam
  • · Replies 1 ·
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1

Graduate Cell Metabolism and Static, Unidirectional Magnetic Fields

  • kpkendall
  • · Replies 2 ·
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2

Graduate Do magnetic lenses do work on particles flowing through them?

  • BrandonBerchtold
  • · Replies 1 ·
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1

Graduate Need a help at computational electromagnetics

  • Ahmed123
  • · Replies 1 ·
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1

Undergrad Magnetic field around a conductor with protons?

  • Ksheva
  • · Replies 11 ·
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11

Undergrad How exactly do inductors work in an LC circuit?

  • Zack K
  • · Replies 27 ·
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27

Undergrad Electron jump and the photon freq

  • zrek
  • · Replies 1 ·
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1

Graduate A dielectric plate and a point charge: the problem with series

  • reterty
  • · Replies 2 ·
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2

Graduate Why do conductivities and resistivities change with magnetic field strength?

  • SchroedingersLion
  • · Replies 2 ·
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2

Undergrad Determining continuity using Gauss' law

  • Mike400
  • · Replies 5 ·
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5

Undergrad Physical meaning of the equation E = - del V

  • Flying_Dutchman
  • · Replies 5 ·
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5

High School Wi-Fi Waves: Why Short Range & Microwaves for Long Distances?

  • Photo1234
  • · Replies 4 ·
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4

Graduate Expressing the magnetic vector potential in terms of its curl

  • tade
  • · Replies 21 ·
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21

Graduate Simple electric potential and Laplace equation

  • dRic2
  • · Replies 8 ·
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8

Undergrad Several questions about electromagnetism

  • apec45
  • · Replies 13 ·
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13

Undergrad Why Is Capacitance Considered Constant in a Conductor?

  • Higgsono
  • · Replies 5 ·
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5

Graduate Instantaneous solutions to Maxwell's equations' potentials conversion?

  • tade
  • · Replies 17 ·
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17

Graduate What exactly is magnetism, anyway?

  • homedoc
  • · Replies 7 ·
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7

Graduate What's the derivation in a moving magnet & conductor problem?

  • tade
  • · Replies 43 ·
2
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43

Graduate Magnetic attraction and repulsion equivalence

  • NTL01
  • · Replies 8 ·
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8

Graduate Piezoelectric Quartz with Pressurized Mercury Vortex

  • knuxyl
  • · Replies 1 ·
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1

Undergrad Free Electron Density Explained: What Is It?

  • Mk
  • · Replies 1 ·
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1

Graduate What is the electric displacement field

  • Greg Bernhardt
  • · Replies 1 ·
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1

Graduate What are some common misunderstandings about magnetism and relativity?

  • CK136
  • · Replies 12 ·
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12

Graduate Work performed by a magnetic field

  • homedoc
  • · Replies 4 ·
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4

Graduate Acceleration of a metal piece due to dipole radiation magnetic field

  • Wayne Lai
  • · Replies 1 ·
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1

High School Can a magnet bend a ray of light?

  • sqljunkey
  • · Replies 27 ·
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27