Electromagnetism Forum

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Undergrad What came first, the coulomb or the amphere?

  • Deep_Thinker97
  • · Replies 10 ·
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10

Undergrad Question about using the sea or earth as a electricity producer

  • radioactive8
  • · Replies 9 ·
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9

Graduate How to Prove Gauss' Law for a Cube with a Central Point Charge?

  • HelpMeh
  • · Replies 6 ·
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6

Undergrad Trouble understanding derivation of current density

  • PsychonautQQ
  • · Replies 1 ·
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1

Undergrad The superposition theorem for electrical circuits

  • Wuberdall
  • · Replies 3 ·
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3

High School Will AC meters be damaged by connecting to a DC circuit?

  • eightsquare
  • · Replies 16 ·
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16

High School Why does bulbs glow bright in parallel?

  • adjacent
  • · Replies 7 ·
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7

High School Tesla's Experiment Troubleshooting

  • sodaboy7
  • · Replies 6 ·
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6

Undergrad Can Electromagnetic Waves be Deflected by Electric or Magnetic Fields?

  • Ishita16
  • · Replies 4 ·
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4

Undergrad Connection between coloumbs , ohms and magnetic flux density

  • B4ssHunter
  • · Replies 3 ·
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3

Graduate Magnetic energy of charged particle?

  • quawa99
  • · Replies 2 ·
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2

Undergrad How to Calculate Equivalent Resistance with Kirchhoff's Laws?

  • B4ssHunter
  • · Replies 19 ·
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19

High School Understanding Magnets: How They Work and Their Importance in Flux Lines

  • B4ssHunter
  • · Replies 8 ·
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8

Undergrad , Electromagnetic waves and their collision

  • osiris545
  • · Replies 2 ·
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2

Undergrad What Causes Maximum Voltage Inside a Conducting Sphere?

  • JustStudying
  • · Replies 2 ·
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2

Undergrad Coulomb's experiment (coulomb's law)

  • ViolentCorpse
  • · Replies 1 ·
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1

Graduate Source terms in Maxwell's Equations and retarded positions

  • Smacal1072
  • · Replies 2 ·
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2

Undergrad Lightning compared to piezo electric element

  • mekhall
  • · Replies 4 ·
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4

Undergrad How to calculate the force between magnets?

  • ZecronTech
  • · Replies 5 ·
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5

Undergrad Acoustic Observatory - Low-Cost

  • Front Office
  • · Replies 14 ·
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14

Graduate Determining the Action of the Electromagnetic Field - Examples

  • bolbteppa
  • · Replies 4 ·
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4

High School Regarding electric field lines

  • jaydnul
  • · Replies 1 ·
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1

Graduate Flux Through a Sphere Containing a Dipole

  • zachfoltz
  • · Replies 1 ·
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1

Undergrad Projectile motion with air resistance

  • guysensei1
  • · Replies 11 ·
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11

Undergrad Electric field due to current carrying wire

  • Aziza
  • · Replies 5 ·
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5

Graduate Classical Model Electrodynamics

  • fred3142
  • · Replies 1 ·
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1

Graduate Can Like-Charged Particles Be Confined Without Excessive Force?

  • ajdecker1022
  • · Replies 8 ·
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8

Undergrad Magnetic Flux Density vs Magnet Geometry

  • Neferkamichael
  • · Replies 2 ·
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2

Undergrad Is the IB Physics HL Answer Key Wrong About Electrostatic Attraction?

  • paulfr
  • · Replies 8 ·
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8

Graduate Q about diff. between ferro and paramagnetism under a strong mag field

  • parsa418
  • · Replies 2 ·
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2

Graduate Can PN Junction Charge Difference Be Utilized to Generate Electrical Energy?

  • messysmurf
  • · Replies 1 ·
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1

Graduate What factors contribute to the deflection of a galvanometer?

  • Sukuya
  • · Replies 3 ·
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3

Undergrad Synchronization of Charge Movement

  • ajdecker1022
  • · Replies 1 ·
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1

Graduate Physical intepretation of derivative in Maxwell equation?

  • DunWorry
  • · Replies 2 ·
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2

Graduate Can a lattice of insulating spheres create a faraday cage?

  • Crazymechanic
  • · Replies 14 ·
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14

Graduate Magnetic Force and Work: Understanding Acceleration of Current-Carrying Wires

  • Sukuya
  • · Replies 1 ·
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1

Graduate How does a radar gun calculate the speed of moving objects using Doppler shifts?

  • Jamie1995
  • · Replies 18 ·
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18

Undergrad Capacitors: why is the dielectric constant defined the way it is?

  • iScience
  • · Replies 1 ·
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1

Undergrad Where Does Kinetic Energy for Magnetism Come From?

  • adjacent
  • · Replies 15 ·
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15

Graduate Propagation of static electric field

  • Interested2
  • · Replies 6 ·
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6

Undergrad What Happens to Divergence When Field Lines Change Length?

  • DunWorry
  • · Replies 1 ·
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1

Graduate Compress a very hot plasma, change in electromagnetic energy?

  • Spinnor
  • · Replies 2 ·
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2

Undergrad How Much Electricity Can Be Generated from a Weighted Anchor Chain?

  • horisize
  • · Replies 17 ·
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17

Undergrad What is the Relationship Between Electrostatic Force and Potential Energy?

  • Bassel
  • · Replies 2 ·
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2

High School Understand Specific Charge for AS Level Physics

  • Simon1234
  • · Replies 2 ·
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2

Graduate Electromagnetic lens for an SEM

  • reduction
  • · Replies 2 ·
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2

High School Watch a Fascinating Demo of Collisions Inside a Conductor

  • pbtami
  • · Replies 2 ·
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2

Graduate Understanding Alternating Current: Voltage and Current Relationship Explained

  • BIT1749
  • · Replies 15 ·
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15

Undergrad Center of magnetic potential vs center of mass

  • nearc
  • · Replies 2 ·
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2

Graduate Maxwell - Boltzman distribution

  • mattT1227
  • · Replies 3 ·
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3

Graduate Electromagnetic Radiation/Photoelectric Effect

  • gauss1181
  • · Replies 2 ·
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2

Undergrad Topic Ideas for Electrodynamics Math Methods Course

  • tolove
  • · Replies 3 ·
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3

Undergrad How to wire LEDs through magnets?

  • move2thecity
  • · Replies 9 ·
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9

Undergrad Kirchoff's voltage law with coils

  • bgq
  • · Replies 8 ·
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8

Graduate Discontinuity of electric field at surface of a conductor

  • ThereIam
  • · Replies 5 ·
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5

Graduate Determination of electric field E

  • zhangwfjh
  • · Replies 2 ·
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2

Undergrad So, the question is: What Does the Quality Factor of a Circuit Signify?

  • thunderhadron
  • · Replies 7 ·
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7

Graduate Question about Maxwell's equations

  • stoopkid
  • · Replies 5 ·
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5

Undergrad Finding the Direction of Voltage Around a Loop

  • Big-Daddy
  • · Replies 13 ·
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13

Graduate Need help in finding some old papers on Induction effect

  • physicsma
  • · Replies 1 ·
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1

Undergrad Force of attraction between two bar magnets

  • NMavro
  • · Replies 6 ·
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6

Undergrad Understanding Electron Movement in a Uniform Electric Field

  • hacker804
  • · Replies 16 ·
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16

Graduate Gauss's Law and Coaxial Cables

  • tZimm
  • · Replies 1 ·
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1

High School Do electrons push each other in a circuit ?

  • B4ssHunter
  • · Replies 23 ·
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23

Undergrad Direction of magnetic force for magnetic dipoles

  • san203
  • · Replies 7 ·
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7

Undergrad EM waves: energy and power related to frequency

  • -sandro-
  • · Replies 1 ·
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1

Undergrad How Does Current Remain Constant in a Circuit with Multiple Resistors?

  • B4ssHunter
  • · Replies 10 ·
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10

Undergrad Alternating Current and Simple Harmonic Motion

  • aayushgsa
  • · Replies 9 ·
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9

Graduate Understanding the MC flux limiter

  • nicksauce
  • · Replies 0 ·
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0

Graduate Electric monopoles cannot radiate?

  • Aziza
  • · Replies 9 ·
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9

Undergrad Force on wire by earth's mag. field

  • eroxore
  • · Replies 2 ·
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2

Undergrad What causes resistance in electrolytic solutions?

  • memoguy
  • · Replies 1 ·
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1

Graduate Plane Wave propogation dependent on space and timez

  • fred3142
  • · Replies 2 ·
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2

Undergrad Questions related to magnetism

  • eightsquare
  • · Replies 22 ·
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22

Undergrad Why Does Electron Drift Speed Remain Constant Despite Continuous Electric Field?

  • Bipolarity
  • · Replies 18 ·
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18

High School What Drives the Existence of Magnetism?

  • ryanuser
  • · Replies 33 ·
2
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33

Undergrad Why Do Capacitors Accumulate Charge?

  • Avichal
  • · Replies 5 ·
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5

High School Acoustic Observatory - Low-Cost

  • Front Office
  • · Replies 1 ·
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1

Undergrad Amplitude and frequency dependence on energy of a wave.

  • Famwoor2
  • · Replies 4 ·
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4

High School What exactly is a magnetic field?

  • Sharon25
  • · Replies 2 ·
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2

Undergrad Question relating to direction of magnetic force on moving charge

  • parsa418
  • · Replies 7 ·
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7

Undergrad Do Voltage/Temperature measure Energy; Fields/Pressure measure Force?

  • 541099
  • · Replies 4 ·
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4

Can Magnets Really Prevent Car Crashes? Debunking the Myth

  • Spikeywan
  • · Replies 72 ·
3
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72

Undergrad Electrical Power Equation Contradiction

  • FredericChopin
  • · Replies 3 ·
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3

Graduate Regarding the inductance model

  • MechatronO
  • · Replies 5 ·
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5

Graduate Laser induced charge in glass?

  • Tao Tao
  • · Replies 4 ·
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4

High School Generating Electron Beam: Tips & Explanations

  • es.no
  • · Replies 5 ·
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5

Graduate How to solve magnetic field using differential form?

  • neildownonme
  • · Replies 1 ·
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1

Graduate How does light get absorbed if its a changing electric/mag field?

  • helpmeplz!
  • · Replies 5 ·
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5

Undergrad Question about hydraulic analogy

  • Famwoor2
  • · Replies 26 ·
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26

Graduate Resistance Heating moving conductor

  • osmax67
  • · Replies 4 ·
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4

Undergrad Electric field from a charged disk

  • Bipolarity
  • · Replies 5 ·
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5

Graduate Z0 of a line with unequal wires

  • modmix
  • · Replies 38 ·
2
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38

Undergrad What does q x d represent in dipole moment calculations?

  • iScience
  • · Replies 4 ·
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4

Graduate Understanding complex permittivity

  • fred3142
  • · Replies 5 ·
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5

Graduate Electromagnetics Minus the Fields

  • thegreenlaser
  • · Replies 7 ·
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7

Graduate Do electric fields in a conductor go to zero in all instances?

  • BucketOfFish
  • · Replies 4 ·
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4

Graduate Some questions about Hard-sphere Maxwellian Gas Collisions

  • erielb
  • · Replies 4 ·
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4

Undergrad Gauss's Law and the permittivity of free space

  • Jimmy87
  • · Replies 2 ·
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2

Undergrad Can Someone Draw an Equivalent Electrical Schematic for This Device?

  • Crazymechanic
  • · Replies 3 ·
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3