Electromagnetism Forum

Post thread

Threads

Graduate Can Electrons Carry Infinite Energy?

  • sqljunkey
  • · Replies 2 ·
Replies
2

Graduate Could an Electromagnetic field produce the "3-body" problem?

  • JorgeM
  • · Replies 1 ·
Replies
1

Undergrad What are the advantages of a solenoid motor over an electric motor?

  • Nocturnal Bug
  • · Replies 4 ·
Replies
4

Undergrad What causes flux to suck-in solder?

  • Stephen Tashi
  • · Replies 6 ·
Replies
6

Graduate Ampere's law in differential form

  • DottZakapa
  • · Replies 5 ·
Replies
5

Graduate What is Teflon's Magnetic Permeability?

  • PolywellGuy
  • · Replies 1 ·
Replies
1

Graduate Current induced from a changing magnetic field

  • unified
  • · Replies 2 ·
Replies
2

Undergrad Lorentz Forces: All the Details You Need to Know!

  • Aagno3
  • · Replies 4 ·
Replies
4

Undergrad Why aren't the coils in electric motors insulated?

  • Xyius
  • · Replies 13 ·
Replies
13

Undergrad Measuring Magnetic Field Strength of a Cylindrical Magnet

  • PhDnotForMe
  • · Replies 3 ·
Replies
3

High School Confused about Polarization and Induction - Static Electricity

  • Abood
  • · Replies 4 ·
Replies
4

Undergrad How do I calculate the expected Gain?

  • CSunderman
  • · Replies 1 ·
Replies
1

Graduate Does action at distance in electromagnetism violate energyconservation

  • hemalpansuriya
  • · Replies 12 ·
Replies
12

Graduate Potential of a grounded conductor in the presence of an external charge

  • kmm
  • · Replies 14 ·
Replies
14

Graduate Lorentz force between two moving charges

  • Universeer
  • · Replies 4 ·
Replies
4

Undergrad Electric field outside a parallel plate capacitor

  • PainterGuy
  • · Replies 7 ·
Replies
7

High School Magnetism vs Altitude: Magnetic Pull & Gravity

  • homerwho
  • · Replies 3 ·
Replies
3

Graduate Tin Whisker (TW) growth in Electronics

  • rray
  • · Replies 1 ·
Replies
1

Graduate Simulating forward electromagnetic scattering for a dielectric

  • Amartansh
  • · Replies 1 ·
Replies
1

Undergrad Resistance of composite material

  • Another
  • · Replies 1 ·
Replies
1

Undergrad Why is the magnitude of the electric field in a sphere the same?

  • Fontseeker
  • · Replies 1 ·
Replies
1

Undergrad E & B field phase relationship in EMR

  • ChrisXenon
  • · Replies 7 ·
Replies
7

High School Do multiple WiFi devices create areas of high EMR?

  • ChrisXenon
  • · Replies 4 ·
Replies
4

Graduate Resistance and Precession Torque of a Gyroscope

  • dishwasher95
  • · Replies 11 ·
Replies
11

Graduate Polarization charge density of homogeneous dielectric

  • Roadtripper
  • · Replies 3 ·
Replies
3

Graduate Energy vs. Time in a Magnetic Field due to a Current Carrying Wire

  • bob012345
  • · Replies 11 ·
Replies
11

Undergrad Resistance of Platinum decreases with an increase in temperature ?

  • TachyonLord
  • · Replies 2 ·
Replies
2

Undergrad An alternative and odd view of Voltage Drop

  • Luchekv
  • · Replies 24 ·
Replies
24

High School Have you ever heard of the term "magnetic spectrum"

  • Leontas
  • · Replies 9 ·
Replies
9

Graduate Faraday's Law & Motional EMF Confusion

  • Luxucs
  • · Replies 3 ·
Replies
3

Graduate Conserved quantities under the Lorentz boost

  • ncarron
  • · Replies 11 ·
Replies
11

Graduate A Question about Albert Shadowitz's Explanation of Ampere's Law

  • bryanso
  • · Replies 4 ·
Replies
4

High School Voltage drop: What do we mean when we say that voltage drops across a resistor?

  • Bheshaj
  • · Replies 13 ·
Replies
13

Graduate Time-symmetry in electromagnetism: a simple puzzle

  • ConradDJ
  • · Replies 4 ·
Replies
4

Undergrad Series LC frequency/voltage dependance

  • artis
  • · Replies 3 ·
Replies
3

Graduate Electric potential generated by a electric loop

  • Tianwu Zang
  • · Replies 1 ·
Replies
1

Graduate Forces acting on a magnet which is deflecting a charged particle

  • S_Wildjocks
  • · Replies 4 ·
Replies
4

Graduate Does electric potential exist without a test charge?

  • etotheipi
  • · Replies 1 ·
Replies
1

Undergrad Question about the polarity of a voltage (PHY 2 for engineers)

  • mhrob24
  • · Replies 4 ·
Replies
4

Undergrad Effects of lengths of solenoids

  • aalnaif
  • · Replies 1 ·
Replies
1

Undergrad Faraday's Law and the distance from another wire

  • Biocalculus
  • · Replies 4 ·
Replies
4

Graduate Voltage across R, L and C vs AC Voltage source in RLC Series Circuit

  • Zahid Iftikhar
  • · Replies 4 ·
Replies
4

Graduate Is this another Maxwell's demon?

  • pkv
  • · Replies 8 ·
Replies
8

Graduate Maxwell’s Equations in Magnetostatics and Solving with the Curl Operator

  • Charles Link
  • · Replies 0 ·
Replies
0

Undergrad Function of a Battery in Simple Circuits

  • Bheshaj
  • · Replies 4 ·
Replies
4

Graduate Equation for the frequency of light from an accelerating charge

  • ealbers
  • · Replies 8 ·
Replies
8

Undergrad Why does a capacitor charge to 63% of the applied voltage?

  • Zahid Iftikhar
  • · Replies 20 ·
Replies
20

Graduate What is the effect of the dielectric material on Gauss' law?

  • Hawkingo
  • · Replies 1 ·
Replies
1

High School Fluctuating Magnets to Interacting Magnetic Fields

  • rtf
  • · Replies 10 ·
Replies
10

Graduate Unsymmetrically Placed Charge in a Hollow Conductor

  • modulus
  • · Replies 1 ·
Replies
1

Graduate Excess Charge Distribution on Grounded Metal Cup

  • terminator88
  • · Replies 1 ·
Replies
1

Undergrad Electric Field of a moving charge

  • Zahid Iftikhar
  • · Replies 22 ·
Replies
22

Graduate How to measure electric and magnetic fields in asymmetric capacitors?

  • stef3679
  • · Replies 12 ·
Replies
12

Undergrad Negative electrical charge on water? Help

  • bergsj
  • · Replies 1 ·
Replies
1

Undergrad Tripling fundemental frequency

  • Strbarrytree
  • · Replies 1 ·
Replies
1

Graduate Does an AC Magnetic field induce movement in a DC Magnetic Field?

  • Dinoduck94
  • · Replies 15 ·
Replies
15

Undergrad Helmholtz coils and a Hall Effect probe

  • Andrea
  • · Replies 1 ·
Replies
1

Graduate Understanding Magnetic Dipole Fields in a Linear Magnetic Sphere

  • StatusX
  • · Replies 1 ·
Replies
1

Graduate Why is my simulation of projectile trajectory with air resistance wrong?

  • fisicist
  • · Replies 13 ·
Replies
13

Undergrad Conversion of EPE to Kinetic Energy in Magnetism

  • lluke9
  • · Replies 1 ·
Replies
1

Undergrad Capacitor Charging, Energy Flow

  • kboi
  • · Replies 1 ·
Replies
1

High School Electric potential difference between a battery's + terminal and the ground

  • cianfa72
  • · Replies 83 ·
3
Replies
83

Graduate Derivation of ideal magnetic dipole field strength

  • RedDeer44
  • · Replies 1 ·
Replies
1

Graduate Detect Single Electron: Fuji-Film & Kodak-Film?

  • KYY
  • · Replies 19 ·
Replies
19

Undergrad Why is electromagnetic force perpendicular to magnetic field?

  • dorian_gray
  • · Replies 1 ·
Replies
1

Graduate Please verify my derivation on elliptical polarization of EM wave

  • yungman
  • · Replies 1 ·
Replies
1

Undergrad The Mysteries of the Franklin Bell Experiment

  • tungsten
  • · Replies 1 ·
Replies
1

Graduate Self-Induced Magnetic Field in a moving rod with current

  • shespuzzling
  • · Replies 1 ·
Replies
1

Undergrad Charge Redistribution in Conducting Objects

  • Samanko
  • · Replies 3 ·
Replies
3

High School What would happen if there were no back EMF in an electric motor?

  • alv
  • · Replies 10 ·
Replies
10

Graduate Ampere's circuital law -- Monopole thought experiment

  • hisacro
  • · Replies 3 ·
Replies
3

Undergrad Positive charge distribution in a conductor

  • Yugeen
  • · Replies 1 ·
Replies
1

Undergrad Can a shorter magnet produce the same current as a taller magnet in a solenoid?

  • jfowle
  • · Replies 1 ·
Replies
1

Undergrad Why Is the Electric Field Between Parallel Plates Not What I Expected?

  • wumple
  • · Replies 1 ·
Replies
1

Graduate If a magnet does not feel the Lenz force, will there be a violation of energy?

  • hemalpansuriya
  • · Replies 29 ·
Replies
29

Undergrad Is a Copper Conductor Directional?

  • Shaddersx
  • · Replies 37 ·
2
Replies
37

Undergrad Induced EMF - Does Voltage Change Matter?

  • whitegheghe10
  • · Replies 1 ·
Replies
1

Undergrad Really challenging electric field problems

  • Ambidext
  • · Replies 1 ·
Replies
1

Graduate Building Software for Damped Pendulum in Electric Field

  • s3a
  • · Replies 1 ·
Replies
1

Graduate Electrostatic induction in a conductor

  • grantc
  • · Replies 1 ·
Replies
1

Graduate Motion of Ring After Current Reduction in Hoop, Line and Stinker

  • cpcolts
  • · Replies 1 ·
Replies
1

Undergrad Electric Potential Energy and Work

  • rainstom07
  • · Replies 1 ·
Replies
1

Undergrad Limit to generating static electricity via contact?

  • atommo
  • · Replies 3 ·
Replies
3

Undergrad Request for historical background on the concept of voltage

  • Guidestone
  • · Replies 1 ·
Replies
1

Graduate Why -e(v/c)H is the magnetic force?

  • Haorong Wu
  • · Replies 7 ·
Replies
7

Graduate Motion of a point charge near an electric dipole

  • hd90001
  • · Replies 1 ·
Replies
1

Undergrad Integration of Poisson's Equation

  • mastrofoffi
  • · Replies 9 ·
Replies
9

Graduate Magnetic field for azimuthal current

  • vibe3
  • · Replies 1 ·
Replies
1

Undergrad Electrostatic potential on a 3d object

  • Cargnelutti
  • · Replies 1 ·
Replies
1

Graduate Why is the Lorentz force linear with velocity?

  • Phycist161
  • · Replies 2 ·
Replies
2

Graduate Magnetohydrodynamics - Plasma or Liquid more conductive?

  • mikerand
  • · Replies 1 ·
Replies
1

Undergrad How Do You Calculate the Charge Between Two Asymmetric Cylinders?

  • jleahy
  • · Replies 1 ·
Replies
1

Graduate Proving Charge Induced on Conductor is Equal to Sum of Imaginary Charges

  • harshant
  • · Replies 1 ·
Replies
1

Undergrad (D'arsonval galvanometer) moving coil meter

  • Siune
  • · Replies 1 ·
Replies
1

Undergrad What is the most effective design for a coil gun?

  • Gogeta007
  • · Replies 1 ·
Replies
1

Undergrad Constructing a Home-Made Single Stage Coilgun

  • Decarabia
  • · Replies 1 ·
Replies
1

Undergrad Voltages in Photoelectric Circuits

  • MrOriginal
  • · Replies 1 ·
Replies
1

Undergrad Appropriate Language when Discussing Faraday's Law

  • tzonehunter
  • · Replies 4 ·
Replies
4

Graduate Question about magnetic field gradients

  • Void123
  • · Replies 1 ·
Replies
1

Undergrad Teaching my boys practical electromagnetism

  • tech-artist
  • · Replies 1 ·
Replies
1