Electromagnetism Forum

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I Speed of magnetic flux propagation?
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3
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116
I Question about Activating Solenoids that are facing each other
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1
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94
I How to calculate the ring resonator radii via Laplace?
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0
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78
I Iron core barely boosting field strength
2
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1K
I Problem with one of the premises in electrostatic pressure theory
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1
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152
I Getting the sign right with the work-energy theorem
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2
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162
I How Do Eddy Current Dampers Work in Space Applications?
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4
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281
I Force between opposing magnets
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7
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334
I Does Diamagnetism Occur Even in a Constant Magnetic Field?
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7
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540
I qv x B force in electron's proper frame
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6
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213
I Can Electromagnetic Levitation Make an Entire Apparatus Go Skyward?
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3
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165
I Can a permeable but non-magnetic rotor be used in an electric motor?
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18
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331
I Effect of Fringe Fields for a Bending (Dipole) Magnet on Field Integral?
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0
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130
I Why Do Some Theorists Claim Cosmic Inflation Dilutes Magnetic Monopoles?
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5
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276
I "Strange contradiction" that Maxwell found and resolved
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7
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258
I An electrolytic capacitor charges by itself?
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3
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1K
I How Does a Magnetic Repulsion Machine Work?
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5
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330
I Resonant cavity with non-resonant dielectric
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10
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465
I Physical approximation to inverse square law using magnet(s)
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12
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393
I How large is the volume of a photon interacting with matter?
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15
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530
I Maxwell's equations in the presence of matter -- Derivation
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1
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381
I Charging Capacitor with one terminal grounded
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16
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584
I Work done by electric field of an irregularly shaped conductor
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3
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494
I Mutual inductance in a transformer
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16
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1K
I How to use geometrical symmetries -- general advice? (Vector potential)
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2
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297
I Reason for Opposite Signs for Terms in Faraday's Law and Ampere's Law
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15
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741
I Quadrupole moment tensor calculation for ellipsoid
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3
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345
I Mutual inductance of bifilar winding, vs transmission line parameter
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4
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299
I Where is the lost energy in this example?
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10
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617
I Work to move a point charge from infinity to the centre of a charge distribution
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4
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438
I Conservation of charge in the Universe
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24
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2K
I How do we know that both plates of a capacitor have the same charge?
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8
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1K
I Do the plates of the capacitor exert a force on each other?
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21
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636
I Understanding dissipation of energy in a resistor through the Drude model
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1
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965
I Question about the current through a strong insulator
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2
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403
I Question about Field Strength of Solenoid Positioned Near a Magnet
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9
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462
I Resistance and specific resistance relationships
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16
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665
I Capacitor connected to voltage source, vary plate separation
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9
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503
I Structural difference between soft and hard ferromagnets
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4
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604
I Do electric currents depend on the frame of reference?
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5
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421
I Simple electromagnetic wave including delay
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2
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395
I Generating Divergence Equation In Cylindrical Coordinates
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3
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510
I Is this solenoid / permanent magnet configuration possible?
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5
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453
I Alternating current in a perfect conductor
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11
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761
I What causes the unexpected annihilation point in the Magic-Tee configuration?
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15
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688
I Problems in classical electrodynamics: Only for point-like particles?
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1
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450
I Electrical breakdown in air in the presence of a single charge
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3
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541
I Light intensity required to shine a light through an opaque object
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22
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1K
I What is the ideal fluid and setup for observing Magnetohydrodynamics?
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1
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517
I Permanent Magnetic Dipole in an electromagnetic field
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2
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587
I How to Measure the Energy of an Electromagnetic Wave?
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4
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919
I Magnetic field as result of length contraction
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17
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1K
I Which law defines the AC inducing voltage in the inductor?
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25
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1K
I Current through U-wire (rail gun): Violation of (naive) conservation of momentum?
2
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61
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2K
I What causes skin effect in AC currents?
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2
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669
I Does B=0 at points out of the plane containing and normal to a point current I?
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8
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677
I Geometry of Magnetic field lines as they approach a magnet pole?
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28
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1K
I When to properly use "voltage"
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25
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1K
I Railgun: Significant magnetic field where projectile is?
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8
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749
I Circular loop in uniform magnetic field
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11
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770
I Is the magnetic field from this current rotationally symmetric?
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12
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786
I Do you think emissivity of air makes sense?
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16
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2K
I Electricity and Magnetism: Verifying the Inverse Square Law
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3
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778
I Can the Last Maxwell's Equation Explain Polarization of a Wire's Insulator?
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3
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802
I Inductance Measurement: Error Due To Series Resistance
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6
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762
I Ampere's Law For Static Magnetic Field
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5
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977
I Guiding center motion of charged particles in EM field
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0
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682
I Power Loss Due to An Eddy Current
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3
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1K
I Is the Poynting Vector Field the Only Factor in Energy Flow in Circuits?
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14
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1K
I How is Potential Difference Created across a Resistor?
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4
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1K
I Question about Coloumb's law notation and math in two different textbooks
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4
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869
I Faraday cage continuity question
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11
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961
I Why are Maxwell's equations and the Lorentz force "so different"
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7
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1K
I Rate of work done by F on charge carrier with average velocity v
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6
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1K
I Will insulation on electric power lines affect the flow of power?
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5
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1K
I Resulting magnetic field due to the passage of an AC current
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27
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1K
I Help working on this example exam please
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8
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852
I An attempt to understand the associated variable conventions in circuits
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1
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823
I Is this example incorrect in Agawal's book on electric circuits?
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3
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840
I Why is there a freedom to choose gauge in gauge transformation?
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3
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865
I Magnetic Field Intensity At the Inductor's Air Gap (+Fringing Flux)
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3
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822
I Questions about cancelation of induced EMF and minimizing eddy currents
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4
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980
I Is the Rutherford model invalid due to a violation of Gauss's Law?
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6
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914
I Magnetic field at a point along the solenoid's axis but outside the solenoid
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5
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1K
I Calculation for proportional mechanical solenoid Force
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3
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I Any free MHD software recomended?
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1
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804
I Hall effect -- is it always applicable?
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7
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958
I Physics domain analysis of Voltage drop in series resistor
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7
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1K
I Is capacitor energy the electrostatic energy of the whole system?
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9
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1K
I Power flow outside a wire - how close?
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4
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1K
I Electromagnetic Absorption in the Ocean
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5
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948
I The vector math of relative motion of wire-loop & bar magnet
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1
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1K
I Dimensional analysis in the formula for gyration frequency
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6
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1K
I Do Electric field lines propagate by themselves away from a charge?
3
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73
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3K
I Why is a Dielectric slab ejected from the capacitor when energized?
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10
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1K
I Electric arc length in relation to voltage
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13
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1K
I Stored magnetic energy of solenoid
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2
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928
I Help with Canonical Poisson Brackets & EM Field
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2
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845
I Oscillating charged particles and E.M waves
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9
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928
I Is total flux linkage λ=dΨ*Ienclosed/I or λ=N*Ψ?
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2
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818

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