Electromagnetism Forum

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How long can electromagnetic waves last?
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Is Magnetism Both Energy and Force?
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Why can't excess charges leave the surface of a conductor?
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Conserved quantity for a particle in a homogeneous and static magnetic field
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Relationship between material resistance and temperature
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Power relation to lightbulb wattage
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Electric Potential vs Electric Potential Energy
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4
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Can I covert magnetic energy to electrical energy?
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Two States of Polarization of EM Waves
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Do electron absorb the entire photon energy?
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Can cogging in permanent magnet motors be utilized for rotational movement?
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Does the charge of a capacitor change during immersion?
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Whether the voltage is actually a magnetic force?
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18
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How exactly does the electric force act?
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Magnetic field lines directed?
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4
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Asymmetrically charged capacitor
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18
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Is it possible to create a magnetic field which can be seen?
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8
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Can a radio frequency be lowered by a passive circuit?
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11
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Difficulty with a Point Charge Particle in Electrodynamics
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Electrostatic Boundary Conditions
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Uniform Electrical potential energy
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Can there be an electric field inside an insulator?
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Capacitors & AC: Changing Phase Difference
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Can Plastic Exhibit Magnetism Under Certain Conditions?”
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Confusion regarding Electric Potential Energy and Work
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How can each Coulomb of charge transfer energy
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18
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Why do charged capacitors prevent current flow?
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19
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Non symmetric case of Ampere's law
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Generalized Ohm's Law: Current Density & Capacitance
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Electromagnetics wireless transmission of Energy
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Is Ampere's Law Affected by External Currents?
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13
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Stray field and demagnetizing field
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Is Mu-Metal the Solution for High Permeability Applications?
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45
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Electric field at the surface of a spherical shell?
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7
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Calculating the resonant frequency of a gas cylinder
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2
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Coulomb's law, electrostatics?
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42
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Satellites and the Earth's Magnetic Field
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7
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Which creates an electric field -- charge or a charged particle?
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4
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Conservation of electrical energy on a conductor
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Electric Field Lines: Midpoint Between 2 Charges
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23
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The difference between electric field and electrical charge
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5
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Does the superposition of electric fields not hold for moving charges?
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7
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What type of energy does electrical current have?
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26
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Is a Universe with Just One Point Charge Physically Meaningful?
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10
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How does electrical current have energy?
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1
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Attempt to find the magnetic field of a moving charge
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7
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Magnetic field of a moving charge and coulombs force
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8
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What happens to the energy in an inductor or capacitor when opened?
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4
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Why center of mass? Why not center of charge?
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22
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Electric field in a capacitor with multiple dielectrics
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Holding down steel plate w/ multiple magnets: Does orientati
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Macroscopic Maxwell's equations and speed of light in media
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6
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Direction of reflected E field on a dielectric surface?
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2
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Inertial Current: Electron Movement & Current Generation
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Can an axisymmetric electric field be created without charges?
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6
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Question on classical electron radius
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3
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What is light exactly? Electromagnetic wave or photons?
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25
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Thermal Resistance to Centerline
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Electromagnet and a current carrying wire
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What would cause a magnetic field in this case?
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How Can Static Electricity Be Controlled in Textile Spinning Machines?
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8
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Why we say that electrical energy is power over time p x t
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If r=0 then will the electric charge of two points=infinity?
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4
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Can We Create an Electric Field Blocking Material Like Mu-Metal?
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3
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How charges can flow in circuit wires at the same potential
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27
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Does electron gas in metals experience viscosity?
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Does a rotating conductor generate a voltage change
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How to predict the movement of a magnet in a magnetic field?
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3
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Can the Lorentz Force be understood non-relativistically?
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2
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Can charged baryons flow induce magnetic field?
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5
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Susceptibility of Ferromagnetic materials
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The circuit of the induction coil
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5
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Non linear field of a long bar magnet
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2
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Magnetic Levitation for Fragrance Dispenser | Product Design
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9
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Why doesn't a magnetically levitating conductor oscillate?
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17
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Confusion about the electric potential
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2
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How to test toroidal permanent magnet with inside field
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14
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Eye's response to electromagnetic (light) waves?
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3
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Voltage Equality: How to Determine Between Two Points with Resistances Given
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Maxwell’s Equations Wave Solutions
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28
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Electric field lines of a sphere in a uniform electric field
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10
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Calculating how to make a homemade capacitor
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12
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Need help with a thought experiment about a Faraday generator
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1
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Natural Frequency of a Foam Block?
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5
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Why Does Wire Orientation Affect the Motor Effect in Electromagnets?
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5
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Copper Magnetism: Interaction & Strength Requirements
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18
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Magnetic Levitation (electromagnets?) for an 11th grader
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3
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Magnetic field and Poynting Flux in an Inductor
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About acoustics physics -- The Wave Equation and diminishing sound intensity
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Does a Wire in an AC Circuit Have a Surface Charge Distribution?
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4
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Why is it obvious that this Lagrangian is Lorentz invariant?
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Current Density between two infinite plates
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7
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Thermal radiation and charged particle acceleration
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3
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Gauss' Law for electromagnetic radiation?
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7
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Stray/Parasitic Capacitance - Impacts phase velocity?
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10
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Magnetic Lines of Dipole and Circular Current wire
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Need references for magnetic force vs distance/angle topic
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2
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Mechanism of discharge in DBD? (dieletric barrier discharge)
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10
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Derivation: Maxwell's equation only from the Lorenz gauge
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3
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EM wave generation using a single charge in a vaccum?
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4
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