Menu

Navigation

More options

Style variation

Contact us

Electromagnetism Forum

Filters

Graduate The Mysterious Aether: Maxwell's Equations and the XYZ Axes

Feb 23, 2005 · Replies 8 · Mar 6, 2005

Replies: 8

Views: 3K

Undergrad Possibility of an electric flame thrower?

Mar 4, 2005 · Replies 3 · Mar 5, 2005

Replies: 3

Views: 5K

High School What is the name of the device used to measure ohms?

Mar 5, 2005 · Replies 10 · Mar 5, 2005

Replies: 10

Views: 2K

Graduate What is the Potential on a Spherical Shell Due to an External Point Charge?

Mar 5, 2005 · Replies 2 · Mar 5, 2005

Replies: 2

Views: 3K

Graduate Electric Field of a Pure Dipole(Math Stuff)

Mar 3, 2005 · Replies 5 · Mar 5, 2005

Replies: 5

Views: 8K

Undergrad Understanding Electricity: The Relationship Between Magnets and Current

Mar 3, 2005 · Replies 3 · Mar 3, 2005

Replies: 3

Views: 5K

Undergrad Can a Simple Copper Coil Device Provide Efficient EM Propulsion?

Mar 2, 2005 · Replies 5 · Mar 3, 2005

Replies: 5

Views: 4K

Undergrad Calculating Potential of a Charged Plate: Figuring Out Fig. 23-1

Mar 1, 2005 · Replies 3 · Mar 1, 2005

Replies: 3

Views: 7K

Undergrad What Causes a Voltage in a Circuit with an LED and Filament Lamp?

Feb 25, 2005 · Replies 4 · Feb 28, 2005

Replies: 4

Views: 3K

Graduate Electro-conceptual questions about capacitors, electric fields, and circuitry

Feb 22, 2005 · Replies 12 · Feb 27, 2005

Replies: 12

Views: 3K

Graduate Maxwell Equations and Waveguide: why only TE or TM wave and not TEM?

Feb 22, 2005 · Replies 10 · Feb 27, 2005

Replies: 10

Views: 14K

Graduate Verifying Answer to Wave Equation and Associated B Field

Feb 27, 2005 · Replies 3 · Feb 27, 2005

Replies: 3

Views: 2K

Graduate Physical Explanation of Faraday's Law

Feb 21, 2005 · Replies 5 · Feb 26, 2005

Replies: 5

Views: 10K

Undergrad What is a typical constant for air resistance in relation to velocity?

Feb 25, 2005 · Replies 1 · Feb 26, 2005

Replies: 1

Views: 11K

High School What exactly is electric field?

Feb 24, 2005 · Replies 13 · Feb 26, 2005

Replies: 13

Views: 6K

Graduate Electric charge, creating plasma and keeping it apart

Feb 25, 2005 · Replies 2 · Feb 25, 2005

Replies: 2

Views: 4K

High School Electromagnetic Waves: What & Why

Feb 25, 2005 · Replies 2 · Feb 25, 2005

Replies: 2

Views: 3K

Graduate Electromagnetic Field: Electric & Magnetic Forces, Wavelength & Frequency

Jan 23, 2005 · Replies 27 · Feb 25, 2005

Replies: 27

Views: 4K

Undergrad Dielectric constant and index of refraction

Feb 24, 2005 · Replies 3 · Feb 24, 2005

Replies: 3

Views: 9K

Graduate Electric Potential: Solving for Distance d from Origin

Feb 24, 2005 · Replies 2 · Feb 24, 2005

Replies: 2

Views: 2K

Undergrad How Does Lenz's Law Cause an Aluminum Ring to Levitate?

Feb 24, 2005 · Replies 1 · Feb 24, 2005

Replies: 1

Views: 3K

High School Does air resistance affect projectile motion?

Feb 15, 2005 · Replies 2 · Feb 24, 2005

Replies: 2

Views: 5K

Undergrad Electro question: Drop Voltage with 1 ohm resistors

Feb 23, 2005 · Replies 2 · Feb 23, 2005

Replies: 2

Views: 13K

Graduate Help with Delta Function & Spherical Electrostatic Potential

Feb 23, 2005 · Replies 4 · Feb 23, 2005

Replies: 4

Views: 3K

Graduate Model Electron Trapped in Magnetic Mirror - Ideas?

Feb 22, 2005 · Replies 2 · Feb 23, 2005

Replies: 2

Views: 2K

Undergrad Superposition principle to find the force due to a system of charges

Feb 21, 2005 · Replies 13 · Feb 23, 2005

Replies: 13

Views: 7K

High School Why Am I Experiencing Shocks in My Lab Near the Computer Screen?

Feb 14, 2005 · Replies 8 · Feb 22, 2005

Replies: 8

Views: 2K

Charges for Styrofoam and Aluminum - Get Answers Here

Feb 21, 2005 · Replies 3 · Feb 21, 2005

Replies: 3

Views: 2K

Graduate In an electrodynamic system, does the entropy of the field increase?

Feb 17, 2005 · Replies 11 · Feb 21, 2005

Replies: 11

Views: 4K

High School Measuring Current with Multimeter, Power Supply & Resistors

Feb 19, 2005 · Replies 3 · Feb 20, 2005

Replies: 3

Views: 9K

High School Voltage, Current & Amps: Explained

Feb 14, 2005 · Replies 5 · Feb 18, 2005

Replies: 5

Views: 4K

High School Good books on electricity/magnetism?

Feb 12, 2005 · Replies 15 · Feb 17, 2005

Replies: 15

Views: 4K

Graduate How Does Charge Imbalance in a Conducting Rod Affect Electric Field Direction?

Feb 12, 2005 · Replies 4 · Feb 16, 2005

Replies: 4

Views: 7K

Undergrad CRT Accelerating & Deflecting Voltages

Feb 13, 2005 · Replies 14 · Feb 14, 2005

Replies: 14

Views: 5K

High School Including air resistance in the calculation of falling objects

Feb 13, 2005 · Replies 13 · Feb 14, 2005

Replies: 13

Views: 9K

Undergrad Capacitance of parrallel plates decrease

Feb 13, 2005 · Replies 3 · Feb 13, 2005

Replies: 3

Views: 2K

Undergrad What Happens to the Charge on a Grounded Sphere Near a Charged Rod?

Feb 12, 2005 · Replies 2 · Feb 12, 2005

Replies: 2

Views: 3K

High School How Do Capacitors and Inductors Store Electric and Magnetic Energy?

Feb 6, 2005 · Replies 4 · Feb 12, 2005

Replies: 4

Views: 2K

Undergrad Why is there a limit to producing high magnetic fields?

Feb 3, 2005 · Replies 3 · Feb 12, 2005

Replies: 3

Views: 2K

High School Positively charged rod to an uncharged electroscope

Feb 11, 2005 · Replies 1 · Feb 12, 2005

Replies: 1

Views: 4K

Undergrad Xtracting energy out of a magnet

Feb 11, 2005 · Replies 5 · Feb 11, 2005

Replies: 5

Views: 3K

Undergrad What is the highest voltage achievable on Earth and what limits its production?

Feb 10, 2005 · Replies 1 · Feb 10, 2005

Replies: 1

Views: 3K

High School Why does increasing voltage result in a lower current?

Feb 6, 2005 · Replies 21 · Feb 10, 2005

Replies: 21

Views: 5K

Graduate Optically active materials + Faraday Rotation

Feb 5, 2005 · Replies 3 · Feb 8, 2005

Replies: 3

Views: 5K

Graduate What is the self energy of electrons and how can it be calculated accurately?

Feb 8, 2005 · Replies 3 · Feb 8, 2005

Replies: 3

Views: 7K

Undergrad Permeability and Permittivity of Free space

Feb 7, 2005 · Replies 2 · Feb 7, 2005

Replies: 2

Views: 11K

Undergrad General idea of what Maxwell did with electromagnitism

Feb 7, 2005 · Replies 2 · Feb 7, 2005

Replies: 2

Views: 3K

Undergrad Resonance frequency of an object

Feb 4, 2005 · Replies 4 · Feb 5, 2005

Replies: 4

Views: 12K

High School Understanding Resistance and Temperature Effects in Metal Wires

Feb 3, 2005 · Replies 2 · Feb 4, 2005

Replies: 2

Views: 2K

Undergrad Formula for magnetic field of solenoid

Feb 2, 2005 · Replies 2 · Feb 4, 2005

Replies: 2

Views: 3K

Graduate Unanswered Query: Is E(r) Undefined at r=R?

Feb 1, 2005 · Replies 9 · Feb 2, 2005

Replies: 9

Views: 2K

Graduate Questions about Maxwell's equations/radiation

Jan 29, 2005 · Replies 7 · Feb 1, 2005

Replies: 7

Views: 3K

Undergrad Pyroelectricity=Peltier-Seebeck effect?

Jan 29, 2005 · Replies 2 · Feb 1, 2005

Replies: 2

Views: 7K

Undergrad Need Help On Electrical Potential Energy

Jan 31, 2005 · Replies 1 · Jan 31, 2005

Replies: 1

Views: 5K

Graduate Proof of Gauss's Law: Connecting Flux and Closed Surfaces

Jan 21, 2005 · Replies 54 · Jan 31, 2005

2

Replies: 54

Views: 20K

Undergrad Current to heat relation for a wire

Jan 28, 2005 · Replies 2 · Jan 31, 2005

Replies: 2

Views: 3K

Graduate Need help with EM/Jackson problem

Jan 26, 2005 · Replies 2 · Jan 29, 2005

Replies: 2

Views: 7K

Undergrad Threshold Frequency: Equation & Electron Release

Jan 26, 2005 · Replies 4 · Jan 29, 2005

Replies: 4

Views: 126K

Undergrad Build a Maglev= (Magnetic levitation) train for a science project

Jan 14, 2005 · Replies 9 · Jan 27, 2005

Replies: 9

Views: 6K

Graduate A question of charged spheres and voltages

Jan 26, 2005 · Replies 4 · Jan 27, 2005

Replies: 4

Views: 3K

Undergrad Increase Voltage without Increasing Wattage?

Jan 25, 2005 · Replies 6 · Jan 26, 2005

Replies: 6

Views: 23K

Graduate Another proof in electrostatics

Jan 23, 2005 · Replies 11 · Jan 23, 2005

Replies: 11

Views: 2K

Graduate How can I calculate the deflection of an electron in a cathode ray tube?

Jan 22, 2005 · Replies 9 · Jan 23, 2005

Replies: 9

Views: 4K

High School DIY Variable Capacitor for Homemade AM Radio Receiver

Jan 22, 2005 · Replies 4 · Jan 23, 2005

Replies: 4

Views: 17K

Graduate What factors affect the temperature dependence of electrical conductivity?

Jan 13, 2005 · Replies 3 · Jan 21, 2005

Replies: 3

Views: 6K

Undergrad What Experiments Can We Do with Complex Numbers and AC Power?

Jan 11, 2005 · Replies 6 · Jan 21, 2005

Replies: 6

Views: 2K

Graduate Griffith's EM third ed. pp.68 equ 2.12

Jan 19, 2005 · Replies 7 · Jan 21, 2005

Replies: 7

Views: 2K

Undergrad Traditional solenoids of C type

Jan 18, 2005 · Replies 1 · Jan 20, 2005

Replies: 1

Views: 2K

Graduate Can Electromagnetic Radiation Help Define Absolute Rest in the Universe?

Jan 19, 2005 · Replies 3 · Jan 20, 2005

Replies: 3

Views: 3K

Graduate Can voltage cause molecules to move and is it related to 'burn-in'?

Jan 19, 2005 · Replies 3 · Jan 19, 2005

Replies: 3

Views: 2K

High School Understanding the Left-Hand Rule in Electrodynamics

Jan 16, 2005 · Replies 4 · Jan 19, 2005

Replies: 4

Views: 10K

Graduate Self Energy and Interaction Energy

Jan 18, 2005 · Replies 9 · Jan 19, 2005

Replies: 9

Views: 6K

Undergrad Factors that govern the diffraction of electromagnetic waves

Jan 17, 2005 · Replies 4 · Jan 18, 2005

Replies: 4

Views: 3K

Graduate Charge distributions & delta functions

Jan 15, 2005 · Replies 2 · Jan 15, 2005

Replies: 2

Views: 3K

Undergrad Proton electricity Possibly alternative power source?

Jan 14, 2005 · Replies 7 · Jan 14, 2005

Replies: 7

Views: 9K

Undergrad Does Flux equal charge enclosed in the electrostatic case in one dimension?

Jan 12, 2005 · Replies 11 · Jan 14, 2005

Replies: 11

Views: 14K

High School What's the Difference Between Voltage and Electrical Potential Energy?

Jan 12, 2005 · Replies 2 · Jan 12, 2005

Replies: 2

Views: 2K

High School Beat Frequency: How Does it Change With Pure Tone Increase?

Jan 12, 2005 · Replies 3 · Jan 12, 2005

Replies: 3

Views: 3K

High School Sky divers air resistance balances with their weight

Jan 9, 2005 · Replies 7 · Jan 11, 2005

Replies: 7

Views: 4K

Undergrad Electromagnetism in my physics class

Jan 9, 2005 · Replies 6 · Jan 10, 2005

Replies: 6

Views: 2K

High School Conducting Electricity: No Wire Transfers?

Dec 24, 2004 · Replies 12 · Jan 8, 2005

Replies: 12

Views: 3K

Undergrad Where Does Half of the Work Done by a Battery Go in a Capacitor Circuit?

Jan 2, 2005 · Replies 5 · Jan 8, 2005

Replies: 5

Views: 3K

High School Longest EM Wave Length: Man-Made or Natural?

Jan 7, 2005 · Replies 7 · Jan 7, 2005

Replies: 7

Views: 6K

Undergrad Electromagnetic Wave: Explaining Proportions for Visualization

Jan 6, 2005 · Replies 4 · Jan 7, 2005

Replies: 4

Views: 3K

High School EM Waves, SONAR, Diffraction, Charge Transfer, and Electric Force

Jan 5, 2005 · Replies 8 · Jan 6, 2005

Replies: 8

Views: 3K

Graduate THermodynamics of a magnetic system

Jan 5, 2005 · Replies 1 · Jan 5, 2005

Replies: 1

Views: 6K

Graduate A question about electromagnetic wave function

Dec 31, 2004 · Replies 9 · Jan 1, 2005

Replies: 9

Views: 3K

Undergrad How does 300 000 000 come out to 299792 km/s?

Dec 30, 2004 · Replies 13 · Dec 31, 2004

Replies: 13

Views: 4K

Undergrad Proton Magnetic Fields: Can They Create B Fields?

Dec 30, 2004 · Replies 6 · Dec 30, 2004

Replies: 6

Views: 3K

High School Calculating Force Using Coulomb's Law

Dec 23, 2004 · Replies 5 · Dec 24, 2004

Replies: 5

Views: 3K

High School What is the electrically charged particle that consists of 1 coulomb?

Dec 22, 2004 · Replies 2 · Dec 23, 2004

Replies: 2

Views: 11K

Undergrad Can Faraday's Law Explain the Induced Current in Two Concentric Loops of Wire?

Dec 20, 2004 · Replies 5 · Dec 20, 2004

Replies: 5

Views: 9K

Undergrad General definition of capacitance

Dec 13, 2004 · Replies 5 · Dec 20, 2004

Replies: 5

Views: 4K

Undergrad What is the resonance frequency expression for a parallel RLC circuit?

Dec 16, 2004 · Replies 6 · Dec 20, 2004

Replies: 6

Views: 12K

Graduate Aharonov-Bohm Effect: Real or Myth?

Oct 29, 2004 · Replies 1 · Dec 20, 2004

Replies: 1

Views: 3K

Undergrad Explore EMF Induction: Why & How It Occurs

Dec 14, 2004 · Replies 11 · Dec 19, 2004

Replies: 11

Views: 3K

Graduate Electromagnetic Wave Scattering

Dec 15, 2004 · Replies 5 · Dec 17, 2004

Replies: 5

Views: 2K

Undergrad Create Your Own EM Lab Experiments| Alternatives | Rigging Up Tanks

Dec 17, 2004 · Replies 1 · Dec 17, 2004

Replies: 1

Views: 2K

Graduate Do Electrons Exist? Investigating the Evidence

Nov 20, 2004 · Replies 13 · Dec 16, 2004

Replies: 13

Views: 17K

Undergrad Calculating Error in Voltage (V) from Errors in I & R

Dec 12, 2004 · Replies 9 · Dec 13, 2004

Replies: 9

Views: 4K

Top