Electromagnetism Forum

Post thread

Threads

Graduate A question regarding isolated charged plates vs. capacitors

  • FallenLeibniz
  • · Replies 9 ·
Replies
9

Electric Potential: Fact or Fiction?

  • Caglar Yildiz
  • · Replies 3 ·
Replies
3

Graduate Why doesn't electrode potential depend on amount of metal?

  • D O
  • · Replies 8 ·
Replies
8

Graduate EM wave interacting with refelcting surface

  • modulus
  • · Replies 5 ·
Replies
5

Graduate Working in a lab with magnetic fields: Bio-hazardous?

  • ian_dsouza
  • · Replies 11 ·
Replies
11

Graduate Stacked magnets with air gaps and the effect on magnetic flux

  • bobsback99
  • · Replies 1 ·
Replies
1

High School Can the force exerted by 2 magnets be used to turn a windmil

  • ArcticWolf_11
  • · Replies 4 ·
Replies
4

Graduate What happens to the electrons in a black hole?

  • jimmylegss
  • · Replies 9 ·
Replies
9

Undergrad Electrons absorb exact energy photons so how is Ek possible

  • CAH
  • · Replies 20 ·
Replies
20

Graduate Charge particle in magnetic field

  • liran avraham
  • · Replies 4 ·
Replies
4

Undergrad Solving Projectile Motion in Fluid: How Far Will It Go?

  • Anders0304
  • · Replies 8 ·
Replies
8

Graduate What is the true nature of photons and their interaction with magnetic waves?

  • MaterSammichM
  • · Replies 23 ·
Replies
23

Graduate Disappearing terms in electrodynamics boundary conditions

  • Ahmad Kishki
  • · Replies 2 ·
Replies
2

Graduate Griffith's E&M: Why is V_0(y) Missing from Equation 3.28?

  • Nusc
  • · Replies 1 ·
Replies
1

Graduate How did Maxwell's theory predict that c is constant?

  • ajay.05
  • · Replies 12 ·
Replies
12

Undergrad Gauss Law in a plane sheet, and thick sheet (Infinite)

  • Prannoy Mehta
  • · Replies 2 ·
Replies
2

High School Hi there, i have a question on maximum current inputs of IC

  • BigBen
  • · Replies 6 ·
Replies
6

Graduate Understanding frequency and dynamics

  • rrdrr8556
  • · Replies 2 ·
Replies
2

Graduate Magnetic field rotation or not?

  • Circlotron
  • · Replies 47 ·
2
Replies
47

Undergrad The physics behind an electric motor and induced emf?

  • ConfPhysics
  • · Replies 3 ·
Replies
3

Undergrad WHY can't electrons absorb photons of any energy?

  • CAH
  • · Replies 1 ·
Replies
1

Undergrad Fluid that is a permanent magnet at room temperature?

  • ryanuser
  • · Replies 1 ·
Replies
1

High School What is the anode net charge on a typical AAA battery?

  • jaydnul
  • · Replies 2 ·
Replies
2

Graduate Clarifying the notion of Flux Linkage

  • SKo
  • · Replies 3 ·
Replies
3

Graduate Is current harmful when it doesn't flow out of you?

  • Nogoodnames
  • · Replies 33 ·
2
Replies
33

Undergrad Internal resistance proportional to current?

  • CAH
  • · Replies 3 ·
Replies
3

Undergrad Current in wire -movement- more current?

  • Salvador
  • · Replies 5 ·
Replies
5

Graduate Confusion about EM Transmission coefficient - critical angle

  • ThiagoEMag
  • · Replies 2 ·
Replies
2

Graduate Current density uniformity electrode array

  • leonhart88
  • · Replies 1 ·
Replies
1

Graduate An Explanation of the Effective Area of Isotropic Antenna

  • Puma24
  • · Replies 1 ·
Replies
1

Graduate Electromagnetic boundary conditions for symmetric model

  • Alan Kirp
  • · Replies 1 ·
Replies
1

Undergrad LED's classes of radinat intensity and total radiant flux

  • vst98
  • · Replies 4 ·
Replies
4

Undergrad Electromagnetic filters (color filters)

  • abbas_majidi
  • · Replies 5 ·
Replies
5

Undergrad Faraday's Paradox: Induced Current Explained

  • carrz
  • · Replies 21 ·
Replies
21

Undergrad What is the role of the cell in an electrolytic cell?

  • On_Pu
  • · Replies 1 ·
Replies
1

Undergrad Does electricity have an effect in reactivity?

  • sciman
  • · Replies 6 ·
Replies
6

Graduate Scalar potential for magnetic field

  • Mr. Rho
  • · Replies 1 ·
Replies
1

Graduate Why do batteries in parallel add in current but not voltage?

  • iScience
  • · Replies 19 ·
Replies
19

Graduate Why Don't NMR Magnet Designs Utilize the Fourth Maxwell Equation?

  • Domenico94
  • · Replies 18 ·
Replies
18

Graduate Deriving the electromagnetic field strength tensor

  • rwooduk
  • · Replies 9 ·
Replies
9

Graduate Maxwell's equations and longitudinal waves

  • Ras9
  • · Replies 11 ·
Replies
11

High School What Is the Role of Voltage in Battery Functionality?

  • member 529879
  • · Replies 1 ·
Replies
1

Graduate Acoustic Impedance - Ultrasound Propagation in Tissue

  • Jimmy87
  • · Replies 1 ·
Replies
1

Graduate Total radiant flux measurement of an LED with an optometer

  • vst98
  • · Replies 2 ·
Replies
2

Undergrad Is Faraday's law applicable on a lesser scale?

  • radaballer
  • · Replies 5 ·
Replies
5

Undergrad How Does the Inverse Piezoelectric Effect Alter Crystal Dimensions?

  • kiutukri
  • · Replies 2 ·
Replies
2

Undergrad Repelling a very weak permanent magnet with an electromagnet

  • EddieP
  • · Replies 1 ·
Replies
1

Graduate Thickness of steel required for shielding magnetic field

  • akashverma
  • · Replies 11 ·
Replies
11

High School 2 questions I wish I had gone to school for this

  • Diamond Dave
  • · Replies 3 ·
Replies
3

Graduate Undetermined system for electric network

  • arestes
  • · Replies 21 ·
Replies
21

Graduate Measuring the electron field emenating from the Earth

  • jamacare
  • · Replies 5 ·
Replies
5

High School Physic simulator ( Pc Software )

  • Bury
  • · Replies 2 ·
Replies
2

Undergrad Magnetism over distance quandry

  • Andrew rathbone
  • · Replies 1 ·
Replies
1

Graduate Thermoelectric devices and entropy

  • mrblanco
  • · Replies 6 ·
Replies
6

Undergrad Best Portable Tesla Meters for Submersible Water Pumps

  • jamacare
  • · Replies 1 ·
Replies
1

Undergrad Generating Electric Fields Inside Cylinders: Experimental Approaches

  • sina_mech
  • · Replies 3 ·
Replies
3

High School Why is a metallic ball attracted to an electromagnet?

  • tecnica
  • · Replies 3 ·
Replies
3

Graduate Multipole Expansion: Understanding Electric & Magnetic Fields

  • leehufford
  • · Replies 7 ·
Replies
7

High School Is Tesla's Concept of Infinite Expression Supported by Physics?

  • Rajkovic
  • · Replies 4 ·
Replies
4

Undergrad Delay of free fall with electromagnets

  • tecnica
  • · Replies 5 ·
Replies
5

Undergrad Struggling with a concept in regards to electric fields

  • Shinwasha
  • · Replies 2 ·
Replies
2

Graduate Looking for opinions on poorly marked exam question.

  • uart
  • · Replies 8 ·
Replies
8

Anyone know of a good source for ordering magnets?

  • Diamond Dave
  • · Replies 3 ·
Replies
3

Undergrad Experimenting with Electric Force on a Van Der Graff Generator

  • louislee8438
  • · Replies 1 ·
Replies
1

Undergrad Electric Potential Energy Conversion

  • felipeek
  • · Replies 3 ·
Replies
3

Undergrad Electrical Resistance between 2 points in homogeneous plane?

  • memoguy
  • · Replies 1 ·
Replies
1

Graduate Total Electrostatic Energy in a system of charges

  • throneoo
  • · Replies 11 ·
Replies
11

Undergrad Speed of electron flow through a conductor

  • rootone
  • · Replies 4 ·
Replies
4

Graduate Electric/Magnetic vicious cycle

  • Dorian Black
  • · Replies 1 ·
Replies
1

Undergrad What is the energy state of electron?

  • eis3nheim
  • · Replies 4 ·
Replies
4

High School Electron Magnetism: Do Electrons Attract?

  • Danyon
  • · Replies 2 ·
Replies
2

Graduate Why magnetic and electric field

  • exponent137
  • · Replies 19 ·
Replies
19

High School Electric charge on rubbed objects

  • IAmUnique
  • · Replies 1 ·
Replies
1

High School What is drift velocity and how is it derived in electricity?

  • manogyana25
  • · Replies 2 ·
Replies
2

Graduate Two Velocities in the Lorentz Law

  • sawer
  • · Replies 2 ·
Replies
2

High School Help understanding flow of electricity

  • MaterSammichM
  • · Replies 7 ·
Replies
7

Graduate Heating a metallic rod from one end by continuous heat flux

  • Adel Makram
  • · Replies 68 ·
3
Replies
68

High School Difference between charge of electron and proton?

  • Keru
  • · Replies 4 ·
Replies
4

Graduate Does electromagnetic radiation actually carry kinetic energy?

  • niklas lindhe
  • · Replies 21 ·
Replies
21

Undergrad What happens to electric field near and away from a neutral

  • Elle885
  • · Replies 7 ·
Replies
7

Graduate An interesting experimental phenomenon about electric field

  • Chengjun Li
  • · Replies 4 ·
Replies
4

Undergrad Difference in work done to move magnet

  • akashverma
  • · Replies 2 ·
Replies
2

High School Understanding the Force Between Charges: Demystifying the fe = kq1q2/r^2 Formula

  • member 529879
  • · Replies 1 ·
Replies
1

Graduate Understanding temperature of a system of paramagnets

  • hideelo
  • · Replies 1 ·
Replies
1

High School Problem with magnets and poles

  • jldibble
  • · Replies 13 ·
Replies
13

Graduate Photodiode current estimate in an Infrared Proximity sensor

  • vst98
  • · Replies 1 ·
Replies
1

High School What does an electromagnetic wave actually look like in real life?

  • 247365
  • · Replies 10 ·
Replies
10

Undergrad AreKirchoff's laws of Current and Voltage interchangeable?

  • C. Long
  • · Replies 7 ·
Replies
7

High School Three big questions about Gravity, Cold and Magnets

  • cubby208
  • · Replies 3 ·
Replies
3

High School Air resistance when moving in the same direction but faster

  • Pikas
  • · Replies 9 ·
Replies
9

Graduate Calculate power required to operate superconducting magnet

  • losbellos
  • · Replies 2 ·
Replies
2

Undergrad Why does my inductor coil have no effect on my circuit

  • nst.john
  • · Replies 8 ·
Replies
8

Undergrad Voltage loss w/ resistor scaling with current

  • Essence
  • · Replies 5 ·
Replies
5

Undergrad Force on a magnet inside a short coil

  • CraigH
  • · Replies 3 ·
Replies
3

Undergrad Power drawn from capacitor in series w bulb & voltage supply

  • RightFresh
  • · Replies 5 ·
Replies
5

Undergrad What does an infinite line of charge represent?

  • FrankJ777
  • · Replies 3 ·
Replies
3

High School Does a moving magnetic field generate a current?

  • HumanDrew
  • · Replies 4 ·
Replies
4

Graduate Do electrons produce a constant magnetic field?

  • Astronaut
  • · Replies 25 ·
Replies
25

Undergrad What is the connection between the Poynting Vector and Current in Physics?

  • Imabioperson
  • · Replies 2 ·
Replies
2

Undergrad Understanding Electromotive Force and Internal Resistance in Batteries

  • yuganes warman
  • · Replies 3 ·
Replies
3