Electromagnetism Forum

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Undergrad Negative plate of a charged capacitor is connected to positive plate

  • Ajay.makhecha
  • · Replies 3 ·
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3

Undergrad Microscopic Ohm's Law: Point-Dependent Resistance?

  • RaduAndrei
  • · Replies 7 ·
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7

Graduate Maximum Torque in Dipoles (electrostatics)

  • kiwibird4
  • · Replies 2 ·
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2

Graduate Does Microwave Mesh Effectively Block Radiation Due to Wavelength or Amplitude?

  • Jimmy87
  • · Replies 5 ·
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5

High School Can a 3V/m Electric Field Detector Detect Someone on the Other Side of a Wall?

  • jlcd
  • · Replies 15 ·
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15

Undergrad Question regarding Energy in Circuits with Capacitors

  • Phy_TR
  • · Replies 2 ·
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2

Graduate What evidence is there for electrons being particles?

  • Rahma Al-Farsy
  • · Replies 8 ·
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8

Undergrad Kirchhoff's Voltage Law Integral help

  • RaduAndrei
  • · Replies 6 ·
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6

Undergrad Particles with electric charges visible to the human eye?

  • Joe Hagner
  • · Replies 20 ·
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20

Undergrad Electromagnet pull force calculation:

  • Dash-IQ
  • · Replies 5 ·
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5

Undergrad Electric Pressure on a Charged Surface due to External EF

  • gracy
  • · Replies 3 ·
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3

Undergrad Detectors used for the electron double slit experiment

  • anorred
  • · Replies 11 ·
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11

High School Oscillations of Dipole in Electric Field: Stability & SHM

  • gracy
  • · Replies 18 ·
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18

Undergrad Why infinite conducting rod - Gauss's Law , uses lambda?

  • annoyingdude666
  • · Replies 5 ·
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5

Graduate Making a Magnetoplasmadynamic (Plasma) Thruster?

  • gustafangus
  • · Replies 15 ·
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15

Graduate Geometric transformation of E field to B ?

  • Ghost117
  • · Replies 6 ·
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6

Undergrad Velocity of charge at the center thrown from far away point

  • gracy
  • · Replies 20 ·
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20

Graduate Understanding the Effect of Distance on Dipole Behavior: A Scientific Inquiry

  • gracy
  • · Replies 11 ·
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11

Undergrad Ions & Lorentz Force: Collisions w/ Oppositely Charged Electrodes

  • Samson4
  • · Replies 4 ·
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4

Undergrad Can conductors be accelerated enough to emit electrons?

  • Samson4
  • · Replies 7 ·
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7

Undergrad Magnetic dipole moment derivation

  • kidsasd987
  • · Replies 4 ·
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4

Graduate Solve Image Charge Problem with Method of Images

  • aaaa202
  • · Replies 1 ·
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1

Graduate Electric field inside perfect conductor with inductance

  • lightarrow
  • · Replies 20 ·
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20

Undergrad Would this work to decrease air resistance in sports cars?

  • Max Mycroft
  • · Replies 11 ·
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11

Undergrad What is the explanation for the electrostatic force between two charged bodies?

  • UchihaClan13
  • · Replies 14 ·
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14

Undergrad Piezoelectric strain rate and frequency of applied voltage

  • gm3
  • · Replies 2 ·
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2

Undergrad Magnetic Field Torque: Surrounding vs. Net Vector Addition?

  • jyotirmaya ojha
  • · Replies 8 ·
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8

Graduate Heat as Electromagnetic and Molecular Kinetics

  • Ronie Bayron
  • · Replies 1 ·
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1

Undergrad Does Gauss' Law use line integrals or surface integrals?

  • Albert Tran
  • · Replies 2 ·
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2

Undergrad What is the Spark From an Oil Burner Igniter Coil?

  • Rockplourde
  • · Replies 1 ·
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1

Undergrad Electromotive force in a moving bar

  • shaiyefet
  • · Replies 4 ·
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4

Undergrad Infintite plane of charge guass law

  • kiwileaf
  • · Replies 5 ·
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5

Graduate Electric and magnetic field connection

  • tim9000
  • · Replies 12 ·
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12

Undergrad Waves on a string and frequency

  • Physgeek64
  • · Replies 2 ·
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2

Graduate Back:EMF and energy conversion in a PMSM

  • noname12345
  • · Replies 1 ·
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1

Graduate What is the medium that allows electromagnetic waves to propagate?

  • Niranjan Dixit
  • · Replies 1 ·
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1

Graduate Series expansion for 2D dipole displaced from the origin

  • dilloncyh
  • · Replies 1 ·
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1

Undergrad Earth's Magnetic Field: Why Only Earth?

  • AnonymousPT
  • · Replies 6 ·
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6

Undergrad Where Does the Extra Energy in a Capacitor Come From?

  • Ajay.makhecha
  • · Replies 3 ·
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3

Undergrad How electrons show wave phenomenon within an atom?

  • Parveen
  • · Replies 6 ·
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6

Undergrad Electromagnet which produces varying magnetic flux

  • Sharlom
  • · Replies 2 ·
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2

Graduate On the Electric Displacement Vector D=E+4*pi*P

  • Charles Link
  • · Replies 5 ·
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5

Undergrad Is Work Required to Move Capacitor Plates Apart?

  • Physgeek64
  • · Replies 11 ·
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11

Graduate Suggests topics in Electrodynamics

  • lyphs
  • · Replies 1 ·
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1

Undergrad Why do railguns produce an "explosion"?

  • beamthegreat
  • · Replies 12 ·
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12

High School Refrigerator magnets with four poles apiece

  • Hornbein
  • · Replies 9 ·
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9

Graduate Maxwell's equation of magnetic field

  • Marre
  • · Replies 1 ·
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1

Undergrad Can a Supercapacitor be Charged with Only One Wire and a Grounded Battery?

  • Samson4
  • · Replies 7 ·
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7

Graduate On the Pole Method of Magnetostatics and Permanent Magnets

  • Charles Link
  • · Replies 1 ·
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1

High School Potential Difference and flow of current

  • UchihaClan13
  • · Replies 3 ·
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3

Undergrad Electromagnetism question (specifically receivers)

  • revv
  • · Replies 6 ·
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6

Graduate Coulomb gauge derivation (static field)

  • kidsasd987
  • · Replies 1 ·
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1

Graduate Energy transfer from photon to an electron

  • Jimmy Moriaty
  • · Replies 25 ·
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25

Undergrad Electric arc in 0 gravity? Curved or straight?

  • kevin_tee
  • · Replies 32 ·
2
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32

Undergrad Force on magnet in magnetic field

  • Teppei
  • · Replies 5 ·
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5

What can I make to keep track of time without electricity

  • Michael2525
  • · Replies 48 ·
2
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48

Graduate Free electron laser weapon -- operating wavelength for the US navy's 1MW FEL?

  • God Plays Dice
  • · Replies 2 ·
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2

Undergrad Question about electromagnetism

  • revv
  • · Replies 2 ·
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2

Graduate Electrostatic analysis of cad model of protons neutrons

  • Jeff Driscoll
  • · Replies 2 ·
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2

Undergrad Why is the concept of dipole moment significant in physics?

  • kiwibird4
  • · Replies 2 ·
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2

Undergrad Are a substance's electrical and heat conductivity related?

  • ScientificMind
  • · Replies 1 ·
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1

Undergrad Magnetic Monopoles: Existence, Electric & Magnetic Fields

  • Dexter Neutron
  • · Replies 2 ·
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2

High School Which direction does a charged particle move in a magnetic field?

  • GuhaGubindam
  • · Replies 1 ·
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1

Graduate Radial dependencies with electric field

  • kiwibird4
  • · Replies 1 ·
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1

High School Relationship of voltage and resistance

  • Googl
  • · Replies 41 ·
2
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41

Graduate EM wave shielding & skin depth

  • tj50
  • · Replies 16 ·
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16

Undergrad Distance of Closest Approach Between Two Charges

  • gracy
  • · Replies 70 ·
3
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70

Graduate Impedance matching and tuning of RF coil

  • uzi kiko
  • · Replies 2 ·
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2

Graduate Force between charges with two dielectric media

  • JerryR
  • · Replies 2 ·
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2

Graduate Why Do Magnets with Different Field Homogeneities Experience Equal Attraction?

  • Antony Kolarov
  • · Replies 5 ·
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5

Undergrad Are Electrons in Different Energy States Responsible for Variations in Power Output?

  • abrogard
  • · Replies 5 ·
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5

Undergrad The Inner Workings of a Voltmeter: Demystifying the Conversion from Galvanometer

  • Suraj M
  • · Replies 6 ·
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6

Graduate Faraday Cage in Ionic Solution

  • Samson4
  • · Replies 2 ·
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2

Graduate Is heat by conduction an electromagnetic wave?

  • htyj6g9jv1ev6
  • · Replies 2 ·
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2

Graduate Field form in the optic fibers from Maxwell's equations

  • EmilyRuck
  • · Replies 1 ·
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1

High School Need help conceptualizing constant voltage in hollow sphere

  • cmkluza
  • · Replies 1 ·
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1

Graduate Deriving capacitor and inductor models from Maxwell's eqs

  • Allan Davis
  • · Replies 7 ·
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7

Graduate What is the self inductance of a circular loop of wire?

  • Auror
  • · Replies 3 ·
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3

Undergrad Does diameter of air coil in electromagnet affect strength?

  • Munnu
  • · Replies 2 ·
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2

Undergrad Magnetic field lines form loops?

  • arul_k
  • · Replies 10 ·
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10

Undergrad Why V=max inside a charged sphere?

  • hellotheworld
  • · Replies 9 ·
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9

Undergrad Electrostatic Forces: Attraction vs Repulsion

  • seb7
  • · Replies 3 ·
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3

Undergrad Does the Current Stay Constant in Series Resistors Connected to an Insulator?

  • Likith D
  • · Replies 9 ·
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9

High School Resistance in Parallel Equation

  • CheesyPeeps
  • · Replies 4 ·
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4

Graduate How do electromagnetic waves transfer energy?

  • physics user1
  • · Replies 7 ·
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7

Graduate Penetration of magnetic field into a plasma?

  • Sven Andersson
  • · Replies 3 ·
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3

Undergrad Charging of capacitors in series

  • Nimbus2000
  • · Replies 2 ·
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2

Graduate Magnetostatics: Finding B field using Amperes Circuital Law

  • FaraDazed
  • · Replies 7 ·
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7

Graduate Upward force due to rotating magnetic field

  • Anakratis
  • · Replies 4 ·
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4

Graduate Light interaction with charged particles

  • God Plays Dice
  • · Replies 1 ·
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1

Graduate Electric field in coaxial cable

  • oocelik
  • · Replies 2 ·
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2

Undergrad Electromagnetism's repulsive force

  • jabes
  • · Replies 12 ·
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12

Graduate How conductors/resistors affect electric fields?

  • kostoglotov
  • · Replies 1 ·
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1

High School Does a magnetic field always do work?

  • Abdul Majid
  • · Replies 11 ·
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11

Undergrad Charge density and electric field

  • JFS321
  • · Replies 3 ·
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3

Undergrad Distribution of force acting upon two charged objects

  • NTL01
  • · Replies 3 ·
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3

High School Special Repelling Magnet Shoes

  • physicsfrenzy
  • · Replies 39 ·
2
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39

Undergrad How to find electrostatic interaction energy?

  • gracy
  • · Replies 38 ·
2
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38

Undergrad Puzzle. Electrical VS solid bar switch.

  • 4472
  • · Replies 4 ·
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4

Undergrad Please help me with this doubt from electrostatics

  • vijayramakrishnan
  • · Replies 2 ·
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2