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High School Explain Why Wind Power Works But Permanent Magnet Power Doesn't

Jun 1, 2008 · Replies 10 · Jun 1, 2008

Replies: 10

Views: 45K

Undergrad Capacitor in an RC-Circuit - Charging & Uncharging

May 31, 2008 · Replies 7 · May 31, 2008

Replies: 7

Views: 5K

Graduate Magnetism to voltage conversion

May 30, 2008 · Replies 3 · May 31, 2008

Replies: 3

Views: 3K

Graduate Lorentz transformation conclusion with rotation of axis

Nov 13, 2007 · Replies 2 · May 30, 2008

Replies: 2

Views: 3K

Graduate E.m.f across the ends of a rod rotating in a magnetic field

May 22, 2008 · Replies 2 · May 29, 2008

Replies: 2

Views: 8K

Graduate Could a Tesla Coil be Used to Efficiently Produce Hydrogen through Electrolysis?

May 22, 2008 · Replies 13 · May 29, 2008

Replies: 13

Views: 7K

High School Leyden Jar Help: Using Spray Adhesive on Foil Layer

May 29, 2008 · Replies 1 · May 29, 2008

Replies: 1

Views: 3K

High School Electric Currents in Copper Wire

May 26, 2008 · Replies 3 · May 27, 2008

Replies: 3

Views: 7K

Graduate Conceptual questions on electrodynamics

May 20, 2008 · Replies 9 · May 26, 2008

Replies: 9

Views: 8K

Undergrad How do you convert watts per meter squared to decibels?

May 24, 2008 · Replies 8 · May 26, 2008

Replies: 8

Views: 28K

Undergrad Ampere's law vs. Biot-Savart law

May 25, 2008 · Replies 3 · May 25, 2008

Replies: 3

Views: 22K

Undergrad Ampere's law - single or double integral?

May 24, 2008 · Replies 2 · May 24, 2008

Replies: 2

Views: 3K

Undergrad Is magnetism more concentrated at the more pointed pole?

May 23, 2008 · Replies 2 · May 24, 2008

Replies: 2

Views: 4K

Undergrad Projectile motion + Air resistance equation?

Jul 1, 2005 · Replies 5 · May 23, 2008

Replies: 5

Views: 48K

Undergrad Voltage breakdown of distilled water

May 21, 2008 · Replies 5 · May 23, 2008

Replies: 5

Views: 20K

Undergrad Earths magnetic field is changing

May 22, 2008 · Replies 1 · May 22, 2008

Replies: 1

Views: 3K

Undergrad Why do spinning objects exhibit right angles in their behavior?

May 20, 2008 · Replies 3 · May 22, 2008

Replies: 3

Views: 3K

Graduate Lenz's Law and counter torque in relation to electrostatic induction

May 20, 2008 · Replies 4 · May 21, 2008

Replies: 4

Views: 8K

Graduate Electric Field Effect on Water

May 6, 2008 · Replies 4 · May 21, 2008

Replies: 4

Views: 11K

High School Electric Currents and Magnetic Fields

May 20, 2008 · Replies 1 · May 20, 2008

Replies: 1

Views: 2K

Graduate E-field strong enough to rip all electrons from copper atoms

May 18, 2008 · Replies 1 · May 20, 2008

Replies: 1

Views: 2K

Undergrad Why does the charge on a conductor accumulate at sharp points?

Oct 6, 2007 · Replies 10 · May 18, 2008

Replies: 10

Views: 26K

Graduate How Does Grounding Affect the Electric Field of a Charged Plate?

May 9, 2008 · Replies 36 · May 18, 2008

2

Replies: 36

Views: 8K

Undergrad How does an induced emf occur in a wire without contact with the magnetic field?

Apr 11, 2008 · Replies 25 · May 18, 2008

Replies: 25

Views: 8K

Undergrad Does Light have an Magnetic Field in a Vacuum?

May 14, 2008 · Replies 13 · May 18, 2008

Replies: 13

Views: 5K

Undergrad How does the wire know the magnetic flux has changed?

May 17, 2008 · Replies 2 · May 17, 2008

Replies: 2

Views: 3K

High School Electric Potential: Explaining the Basics

May 17, 2008 · Replies 2 · May 17, 2008

Replies: 2

Views: 2K

Graduate Heaviside's Transformative Work on Maxwell's 17 Equations

May 16, 2008 · Replies 1 · May 17, 2008

Replies: 1

Views: 3K

Undergrad Why Is I Negative? A Closer Look at the Norton Method

May 14, 2008 · Replies 3 · May 16, 2008

Replies: 3

Views: 3K

High School Understanding Ground Potential: My Experience with a Volt Meter

May 12, 2008 · Replies 5 · May 16, 2008

Replies: 5

Views: 4K

Undergrad Potential Due to a Collection Charges

May 16, 2008 · Replies 2 · May 16, 2008

Replies: 2

Views: 2K

Graduate A cylinder of electric field varying in time

May 15, 2008 · Replies 5 · May 16, 2008

Replies: 5

Views: 3K

Undergrad Question about electrons per shell

May 15, 2008 · Replies 5 · May 16, 2008

Replies: 5

Views: 13K

Graduate Charge distributions vs. voltage on an infinite plate

May 12, 2008 · Replies 27 · May 15, 2008

Replies: 27

Views: 12K

High School Understanding the Importance of Resistors in Electrical Circuits - Explained

May 14, 2008 · Replies 6 · May 15, 2008

Replies: 6

Views: 3K

Graduate Electron collison with an atom

May 14, 2008 · Replies 9 · May 14, 2008

Replies: 9

Views: 5K

High School Circuit Troubleshooting: Identify Resistors in Parallel & Series

May 14, 2008 · Replies 1 · May 14, 2008

Replies: 1

Views: 2K

High School What does these electric components represent?

May 11, 2008 · Replies 7 · May 14, 2008

Replies: 7

Views: 2K

Graduate Uniqueness of solutions to maxwell eqns

May 10, 2008 · Replies 14 · May 13, 2008

Replies: 14

Views: 4K

High School Why Do Voltages in Series Add: Explained Physically

May 13, 2008 · Replies 3 · May 13, 2008

Replies: 3

Views: 2K

Graduate Horn Antenna Radio Interferometer

Apr 21, 2008 · Replies 3 · May 13, 2008

Replies: 3

Views: 3K

Graduate Oscillating charge, wave shift

May 5, 2008 · Replies 1 · May 13, 2008

Replies: 1

Views: 3K

Graduate Controled electric energy extraction from clouds

Jul 14, 2005 · Replies 11 · May 13, 2008

Replies: 11

Views: 4K

Undergrad Comparing Decibel and Voltage Levels in Sound Experiment

May 12, 2008 · Replies 6 · May 12, 2008

Replies: 6

Views: 17K

Undergrad Electric potential and conductors

May 11, 2008 · Replies 1 · May 12, 2008

Replies: 1

Views: 2K

High School Charges moving along an electric field:

May 8, 2008 · Replies 3 · May 11, 2008

Replies: 3

Views: 10K

Graduate What is the limit of electron flow in a transistor at 508 GHz?

Apr 28, 2008 · Replies 13 · May 11, 2008

Replies: 13

Views: 4K

Undergrad Potential Energy of an Electric Field

May 11, 2008 · Replies 3 · May 11, 2008

Replies: 3

Views: 3K

High School Number of electrons per cubic metre

May 10, 2008 · Replies 1 · May 10, 2008

Replies: 1

Views: 7K

Graduate What Happens to Induced EMF in Superconductors When Magnetic Flux Changes?

May 10, 2008 · Replies 2 · May 10, 2008

Replies: 2

Views: 5K

Undergrad Understanding the Shape of Magnetic Fields: Insights on Single Moving Particles

May 6, 2008 · Replies 4 · May 10, 2008

Replies: 4

Views: 4K

Graduate Magnetic field in plane of ring, outside (verify please?)

May 9, 2008 · Replies 3 · May 10, 2008

Replies: 3

Views: 7K

High School Uncovering the Mystery of Thompson's Flying Ring

May 6, 2008 · Replies 5 · May 10, 2008

Replies: 5

Views: 3K

Undergrad Physical meaning of minus in Faraday's law of induction

May 7, 2008 · Replies 5 · May 9, 2008

Replies: 5

Views: 8K

Graduate Force between charges and dielectrics

May 9, 2008 · Replies 1 · May 9, 2008

Replies: 1

Views: 2K

Undergrad How Do You Calculate the Strength of an Electromagnet?

Apr 24, 2008 · Replies 2 · May 9, 2008

Replies: 2

Views: 7K

Undergrad How Does Grounding Affect Charge Distribution in a Metal Sphere?

May 8, 2008 · Replies 1 · May 9, 2008

Replies: 1

Views: 3K

Undergrad Index of refraction = sqrt dielectric constant

May 8, 2008 · Replies 1 · May 9, 2008

Replies: 1

Views: 21K

Undergrad : Guass's Law and surface integrals

May 7, 2008 · Replies 4 · May 8, 2008

Replies: 4

Views: 3K

Graduate Possible Error in Vector Calculus Book

May 1, 2008 · Replies 3 · May 7, 2008

Replies: 3

Views: 3K

Graduate Why is the Poynting Vector defined as E x B?

May 7, 2008 · Replies 2 · May 7, 2008

Replies: 2

Views: 3K

Graduate Capacitance of point charge electrode

May 7, 2008 · Replies 2 · May 7, 2008

Replies: 2

Views: 6K

Undergrad Electrostatic Fields inside Charged Conductors

May 3, 2008 · Replies 7 · May 6, 2008

Replies: 7

Views: 3K

High School Understanding the Basics of Electromagnetic Waves: Explained with Examples

May 5, 2008 · Replies 3 · May 6, 2008

Replies: 3

Views: 3K

Undergrad Forces on a submerged object due to currents in the ocean

May 5, 2008 · Replies 1 · May 6, 2008

Replies: 1

Views: 6K

Graduate Is the Energy of a Point Charge Finite or Infinite?

May 3, 2008 · Replies 10 · May 6, 2008

Replies: 10

Views: 18K

Graduate Reducing Parasitic Resistance of Inductor Coils

May 5, 2008 · Replies 1 · May 6, 2008

Replies: 1

Views: 6K

Tips for Starting a Home-Based Business

May 5, 2008 · Replies 1 · May 5, 2008

Replies: 1

Views: 2K

Graduate Electromagnetic Radiation Propagation and Efficiency

May 4, 2008 · Replies 3 · May 5, 2008

Replies: 3

Views: 6K

Undergrad What is a dipole moment in classical electromagnetisim?

Feb 13, 2007 · Replies 7 · May 5, 2008

Replies: 7

Views: 28K

High School Covelant bonds:why dont the electrons(+) repel eachother?

May 4, 2008 · Replies 1 · May 4, 2008

Replies: 1

Views: 4K

High School Selenium conducts electricity better in the light than in the dark

May 2, 2008 · Replies 3 · May 3, 2008

Replies: 3

Views: 6K

Graduate Understanding E&M: A Review of Textbook Content and Critiques

Apr 30, 2008 · Replies 1 · May 2, 2008

Replies: 1

Views: 3K

Undergrad Magnetic Dipole Moment - Vector Orientation

May 1, 2008 · Replies 2 · May 2, 2008

Replies: 2

Views: 6K

Undergrad How does electrostatic levitation work?

Apr 26, 2008 · Replies 2 · May 1, 2008

Replies: 2

Views: 4K

Graduate Energy of magnetic field created by magnetic dipoles in a shphere.

Apr 30, 2008 · Replies 1 · May 1, 2008

Replies: 1

Views: 8K

Undergrad How Does the Electromagnetic Wave Equation Represent Electric Fields?

Apr 30, 2008 · Replies 3 · Apr 30, 2008

Replies: 3

Views: 4K

Graduate What are some methods for plotting the path of a particle in a magnetic bottle?

Apr 29, 2008 · Replies 5 · Apr 30, 2008

Replies: 5

Views: 3K

Undergrad Where does the magnetic component come into play in an LC circuit?

Apr 27, 2008 · Replies 4 · Apr 30, 2008

Replies: 4

Views: 5K

Undergrad Question about induced current

Apr 28, 2008 · Replies 1 · Apr 29, 2008

Replies: 1

Views: 3K

Undergrad Does the resistance of strain gauge increase when temperature increases?

Apr 28, 2008 · Replies 4 · Apr 28, 2008

Replies: 4

Views: 5K

Undergrad EM wave field strength and energy

Apr 28, 2008 · Replies 3 · Apr 28, 2008

Replies: 3

Views: 4K

Undergrad Is There a Way to Calculate Energy in Magnets Using FEMM Software?

Apr 28, 2008 · Replies 4 · Apr 28, 2008

Replies: 4

Views: 2K

Graduate Is Electromagnetic Radiation Merely a Mental Construct?

Apr 27, 2008 · Replies 3 · Apr 28, 2008

Replies: 3

Views: 3K

Graduate How is the electromagnetic field different from aether?

Apr 27, 2008 · Replies 2 · Apr 28, 2008

Replies: 2

Views: 3K

High School The experiment that proved electrons to compose current

Apr 26, 2008 · Replies 5 · Apr 27, 2008

Replies: 5

Views: 8K

Undergrad Antenna Frequency & Wavelength: Explained

Apr 24, 2008 · Replies 11 · Apr 27, 2008

Replies: 11

Views: 5K

Graduate Virtual Work - Magnetostatics - Feynman?

Apr 23, 2008 · Replies 4 · Apr 25, 2008

Replies: 4

Views: 3K

Graduate This could be the solution to your confusion.

Apr 21, 2008 · Replies 3 · Apr 24, 2008

Replies: 3

Views: 5K

High School Electromagnetic induction and Lenz's law

Apr 22, 2008 · Replies 4 · Apr 24, 2008

Replies: 4

Views: 3K

Graduate Fusion or not with Van De Graaff machine and very high voltage

Apr 16, 2008 · Replies 3 · Apr 24, 2008

Replies: 3

Views: 3K

High School Can sympathetic vibrations create vocal undertones in acoustic environments?

Apr 20, 2008 · Replies 3 · Apr 23, 2008

Replies: 3

Views: 3K

Undergrad Field lines and Coulomb Forces

Apr 22, 2008 · Replies 9 · Apr 23, 2008

Replies: 9

Views: 4K

High School Can Hitting Metal Make it Magnetic?

Apr 22, 2008 · Replies 6 · Apr 23, 2008

Replies: 6

Views: 11K

Graduate How Does Charge Affect Boundary Conditions in an Electric Field?

Apr 19, 2008 · Replies 2 · Apr 22, 2008

Replies: 2

Views: 2K

Undergrad Capacitor in AC Circuit: Understanding Current Flow and Energy Storage

Apr 22, 2008 · Replies 9 · Apr 22, 2008

Replies: 9

Views: 18K

Undergrad Question about electromagnet induction in a coill.

Apr 21, 2008 · Replies 2 · Apr 22, 2008

Replies: 2

Views: 2K

Graduate Electromagnetic Wave Propagation

Apr 20, 2008 · Replies 9 · Apr 21, 2008

Replies: 9

Views: 6K

High School RC circuit maximum voltage

Apr 20, 2008 · Replies 1 · Apr 20, 2008

Replies: 1

Views: 2K

Graduate Magnetic field produced by a solenoid

Apr 19, 2008 · Replies 2 · Apr 20, 2008

Replies: 2

Views: 8K

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