Electromagnetism Forum

Post thread

Threads

Graduate Good resource on covariant/contravariant, magnetic coordinates, and jacobians?

  • chrysaetos13
  • · Replies 1 ·
Replies
1

Undergrad What Are the Differences Between B, H, D, E in Physics and Types of Magnets?

  • klmnopq
  • · Replies 5 ·
Replies
5

Undergrad Electric field near infinite charged sheet and point charge

  • prakharj
  • · Replies 2 ·
Replies
2

Graduate Gauss's law and volumes with zero «net» charge

  • ShayanJ
  • · Replies 11 ·
Replies
11

Undergrad Vacuum Permeability: SI Base Units, Amps-2 Power

  • Dr L
  • · Replies 3 ·
Replies
3

Undergrad Electric field of a continuous charge distribution at any point

  • adrs
  • · Replies 1 ·
Replies
1

Graduate Can the Lorentz Force be Used to Calculate Self-Force?

  • PLuz
  • · Replies 5 ·
Replies
5

High School Can Electromagnets Achieve Levitation?

  • thebluser
  • · Replies 7 ·
Replies
7

Undergrad Why Electrons Pair in Orbitals Around Atoms

  • trollcast
  • · Replies 1 ·
Replies
1

Undergrad What is Gauss's Law and How Does it Relate to Electric Fields and Surfaces?

  • Northbysouth
  • · Replies 4 ·
Replies
4

Undergrad Confused by surface charge and voltages

  • bingbong
  • · Replies 1 ·
Replies
1

Undergrad Coulomb's constant, electric force constant

  • Dr L
  • · Replies 3 ·
Replies
3

Graduate Does the Electron's Magnetic Field Possess Higher-Order Poles?

  • dipole
  • · Replies 3 ·
Replies
3

High School Doubt regarding direction of current during lightning

  • Puneeth423
  • · Replies 9 ·
Replies
9

Undergrad Doubt regarding current flow during lightening.

  • Puneeth423
  • · Replies 2 ·
Replies
2

Graduate Proton vs electron magnetic moments

  • kurros
  • · Replies 4 ·
Replies
4

High School Charge flow when two conductors having same charge are connected

  • D_DaYwAlKeR
  • · Replies 6 ·
Replies
6

Undergrad How Can You Create Effective DIY Capacitors at Home?

  • mathsciguy
  • · Replies 22 ·
Replies
22

Undergrad How to Calculate the E Field Inside a Charged Cylinder?

  • cragar
  • · Replies 1 ·
Replies
1

Undergrad How Do You Calculate the Electric Field Ex at a Point in a Voltage Field?

  • wiiman3893
  • · Replies 4 ·
Replies
4

Undergrad Curious: Magnetic bullet question

  • gendoikari87
  • · Replies 1 ·
Replies
1

Graduate Relative Velocity Derivation from Maxwell-Boltzmann

  • feynman_freak
  • · Replies 2 ·
Replies
2

Undergrad Gauss's Law for Line of Charge

  • mvpshaq32
  • · Replies 6 ·
Replies
6

High School Voltage required in an LED circuit

  • Neme
  • · Replies 24 ·
Replies
24

Graduate Solving Electric Field: From (3) to (4)

  • jumi
  • · Replies 3 ·
Replies
3

Graduate Electrical Force Between Two Moving Charges

  • samieee
  • · Replies 1 ·
Replies
1

Graduate A strange but reasonable solution for Helmholtz equation

  • qilong
  • · Replies 6 ·
Replies
6

High School Who determined Coulomb's Constant?

  • Dr L
  • · Replies 13 ·
Replies
13

Undergrad Magnet repulsion distance calculation

  • thebluser
  • · Replies 1 ·
Replies
1

Graduate Heat Generation by Electromagnetic Waves in Semi-Transparent Mediums

  • rek
  • · Replies 7 ·
Replies
7

Undergrad Electric field of a sphere whit a cavity inside

  • Casco
  • · Replies 4 ·
Replies
4

Graduate Physicists Detect Elusive Orbiton By Splitting Electron

  • PlanckShift
  • · Replies 4 ·
Replies
4

Undergrad Electrical energy transmission and transformer

  • sgstudent
  • · Replies 27 ·
Replies
27

Graduate The derivation of damped frequency and natural frequency formula

  • tingyuau
  • · Replies 1 ·
Replies
1

High School Calculating K in Coulomb's Law

  • Mohamad&Issa
  • · Replies 8 ·
Replies
8

Graduate How is Coulomb's Law generalized for continuous charge distributions?

  • basik156
  • · Replies 3 ·
Replies
3

Undergrad How do I know when to use the charge density or not in a Gauss problem?

  • Parad0x88
  • · Replies 1 ·
Replies
1

Undergrad Electromagnetic Waves Frequency

  • sarvesh0303
  • · Replies 4 ·
Replies
4

Undergrad Basic requirements to start a course in electrodynamics

  • nearlynothing
  • · Replies 4 ·
Replies
4

Undergrad Why is the magnetic field of a superconductor normally excluded?

  • lufc88
  • · Replies 19 ·
Replies
19

Graduate Understanding Gauss's Law Regarding Magnetic Field in Current Sheets

  • YusifNurizade
  • · Replies 2 ·
Replies
2

Graduate Bound charge in linear dielectric

  • amankr
  • · Replies 1 ·
Replies
1

Undergrad What is the mass of a sphere with uniform charge?

  • ghost34
  • · Replies 3 ·
Replies
3

Undergrad Is the nature of a magnetic field always conservative or is it case dependent?

  • Blogical
  • · Replies 14 ·
Replies
14

Undergrad Shielding Magnetic Fields: How Can We Measure and Contain Them?

  • Piano man
  • · Replies 7 ·
Replies
7

Undergrad Induced emf when dropping a magnet into a solenoid

  • sgstudent
  • · Replies 5 ·
Replies
5

Graduate Are magnetic monopoles expected?

  • Decimator
  • · Replies 8 ·
Replies
8

Undergrad Pulling current for charging and current limiting devices

  • nlaham
  • · Replies 13 ·
Replies
13

Graduate Countercurrent condensation loop

  • imsmooth
  • · Replies 1 ·
Replies
1

Undergrad High level defintion of electromagnetic radiation?

  • Logical1
  • · Replies 7 ·
Replies
7

Graduate Understanding Bmax in Magnetics and the Role of Half-Cycles: A Question Analysis

  • yungman
  • · Replies 6 ·
Replies
6

Undergrad What is the reason for using electrically insulating joints in a water system?

  • Calvadosser
  • · Replies 15 ·
Replies
15

Undergrad How Does Faraday's Law Explain EMF Induction Outside a Solenoid?

  • aaaa202
  • · Replies 103 ·
4
Replies
103

Graduate Getting lorentz electromagnetic force from hamilton principle

  • y.moghadamnia
  • · Replies 1 ·
Replies
1

Graduate Inserting dielectric into isolated capacitor

  • SpartanG345
  • · Replies 5 ·
Replies
5

Graduate Plasma and Magnetic Fields: A Perpetual Motion Conundrum?

  • Fischer777
  • · Replies 4 ·
Replies
4

Undergrad Electric Field Distribution of a disk

  • davidflip
  • · Replies 1 ·
Replies
1

Graduate What is the significance of the 10^-8 multiplier in Faraday's Law for coils?

  • yungman
  • · Replies 6 ·
Replies
6

Graduate Calculate Distributed Capacitance for Wireless Energy Transfer in Circular Coils

  • nafaraj
  • · Replies 1 ·
Replies
1

Undergrad Photoelectric Effect: Measuring Stopping Voltage

  • tomz
  • · Replies 3 ·
Replies
3

Undergrad Velocity of a magnet traveling in a magnetic field

  • jmmy
  • · Replies 11 ·
Replies
11

Undergrad Magnetic Field Force on Parallel Moving Charges

  • lizdrotos
  • · Replies 1 ·
Replies
1

Undergrad Difficulty in differential form of gauss law

  • eng.phy
  • · Replies 16 ·
Replies
16

Undergrad Light As a electromagnetic wave?

  • Deadevil
  • · Replies 5 ·
Replies
5

Undergrad Skin Effect in Electromagnetism: Detailed Explanation

  • Blogical
  • · Replies 2 ·
Replies
2

High School Zero voltage, non-zero current?

  • Artlav
  • · Replies 2 ·
Replies
2

Graduate Rotating an Electron: Why Different Degrees of Freedom?

  • Khashishi
  • · Replies 10 ·
Replies
10

Undergrad Magnetic Susceptibility of a Solution

  • Sebolains
  • · Replies 4 ·
Replies
4

Graduate Independent equations of maxwell equations

  • sadegh4137
  • · Replies 23 ·
Replies
23

Undergrad Is it possible to harness energy from the earths magneic field?

  • nuts2546
  • · Replies 23 ·
Replies
23

Graduate Interpretation and application of Poynting's theorem?

  • harrylin
  • · Replies 59 ·
2
Replies
59

Undergrad Force of gravity on magnetically levitating object?

  • KidSix
  • · Replies 1 ·
Replies
1

Graduate How can I safely separate mains phase for electricity transfer?

  • Crazymechanic
  • · Replies 4 ·
Replies
4

Undergrad Charged particles through magnetic field

  • Crazymechanic
  • · Replies 1 ·
Replies
1

Graduate Does Orbiting a Charged Planet Create a Constant and Positive B Field?

  • cragar
  • · Replies 5 ·
Replies
5

Undergrad How exactly does a current create a magnetic field and vice versa?

  • jaydnul
  • · Replies 2 ·
Replies
2

Undergrad Solve RL Circuit Equation: Kirchhoff's Rule Explained

  • Avichal
  • · Replies 4 ·
Replies
4

Graduate Why do electromagnetic waves reflect

  • HomogenousCow
  • · Replies 6 ·
Replies
6

Graduate Experimental proof of retardation in EM fields

  • universal_101
  • · Replies 13 ·
Replies
13

High School Increasing total magnetic moment: permanent magnets ONLY

  • JeffEvarts
  • · Replies 1 ·
Replies
1

Graduate How does the electromagnetic force unify electric and magnetic forces?

  • Michio Cuckoo
  • · Replies 19 ·
Replies
19

Undergrad How did Tesla create such high frequency currents?

  • Strangeline
  • · Replies 3 ·
Replies
3

Undergrad How is EMF Induced in a Moving Straight Wire in a Constant Magnetic Field?

  • fletch-j
  • · Replies 5 ·
Replies
5

Graduate Electromagnetic potential well, impossible?

  • Waxbear
  • · Replies 5 ·
Replies
5

High School What do Electromagnetic waves actually look like?

  • jaydnul
  • · Replies 17 ·
Replies
17

Graduate Can EM Wave Components Be Split for Enhanced Applications?

  • mathsTKK
  • · Replies 1 ·
Replies
1

Undergrad Earth Grounding for AC and DC Voltage: Safety Precautions and Considerations

  • AbbasC
  • · Replies 8 ·
Replies
8

High School Need explanation on how electrons and electricity work

  • SC0
  • · Replies 3 ·
Replies
3

High School Water analogy as electricity explanation

  • nb99
  • · Replies 1 ·
Replies
1

Graduate Why will current flow obliquely (Irodov Problem)?

  • ShakyAsh
  • · Replies 4 ·
Replies
4

Undergrad Confused - Max frequency versus fundamental frequency

  • sajib333
  • · Replies 21 ·
Replies
21

Undergrad Confusion created by notation in E&M

  • leroyjenkens
  • · Replies 3 ·
Replies
3

High School Making a Homemade Parallel Plate Capacitor

  • mathsciguy
  • · Replies 16 ·
Replies
16

High School Using water to create electric energy

  • shavendome
  • · Replies 3 ·
Replies
3

Undergrad How does electrical energy perform work?

  • milkomeda
  • · Replies 4 ·
Replies
4

Graduate Surfing with electromagnetic waves

  • HomogenousCow
  • · Replies 5 ·
Replies
5

Graduate Electric Potential Inside Uniformly Charged Sphere

  • nabeel17
  • · Replies 5 ·
Replies
5

Graduate Spin Polarized Current: Magnetic Moment & Interaction

  • lufc88
  • · Replies 2 ·
Replies
2

Graduate Confusion regarding continuity equation in electrodynamics

  • ppoonamk
  • · Replies 2 ·
Replies
2

Undergrad Amplitude modulation frequency component

  • sajib333
  • · Replies 2 ·
Replies
2