Electromagnetism Forum

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I Work done by electric field of an irregularly shaped conductor
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I Mutual inductance in a transformer
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I How to use geometrical symmetries -- general advice? (Vector potential)
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I Reason for Opposite Signs for Terms in Faraday's Law and Ampere's Law
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I Quadrupole moment tensor calculation for ellipsoid
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I Mutual inductance of bifilar winding, vs transmission line parameter
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I Where is the lost energy in this example?
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I Work to move a point charge from infinity to the centre of a charge distribution
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I Conservation of charge in the Universe
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24
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I How do we know that both plates of a capacitor have the same charge?
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I Do the plates of the capacitor exert a force on each other?
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I Understanding dissipation of energy in a resistor through the Drude model
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I Question about the current through a strong insulator
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I Question about Field Strength of Solenoid Positioned Near a Magnet
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I Resistance and specific resistance relationships
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I Capacitor connected to voltage source, vary plate separation
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I Structural difference between soft and hard ferromagnets
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I Do electric currents depend on the frame of reference?
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I Simple electromagnetic wave including delay
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I Generating Divergence Equation In Cylindrical Coordinates
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I Is this solenoid / permanent magnet configuration possible?
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I Alternating current in a perfect conductor
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I What causes the unexpected annihilation point in the Magic-Tee configuration?
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I Problems in classical electrodynamics: Only for point-like particles?
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I Light intensity required to shine a light through an opaque object
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I What is the ideal fluid and setup for observing Magnetohydrodynamics?
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I Permanent Magnetic Dipole in an electromagnetic field
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I How to Measure the Energy of an Electromagnetic Wave?
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I Which law defines the AC inducing voltage in the inductor?
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25
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I Does a Railgun's Current Violate Conservation of Momentum?
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I What causes skin effect in AC currents?
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I Does B=0 at points out of the plane containing and normal to a point current I?
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I Geometry of Magnetic field lines as they approach a magnet pole?
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28
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I When to properly use "voltage"
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25
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I Railgun: Significant magnetic field where projectile is?
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8
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I Circular loop in uniform magnetic field
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11
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I Is the magnetic field from this current rotationally symmetric?
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12
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I Do you think emissivity of air makes sense?
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16
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I Electricity and Magnetism: Verifying the Inverse Square Law
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3
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I Can the Last Maxwell's Equation Explain Polarization of a Wire's Insulator?
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3
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I Inductance Measurement: Error Due To Series Resistance
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I Ampere's Law For Static Magnetic Field
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I Guiding center motion of charged particles in EM field
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I Power Loss Due to An Eddy Current
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I Question about Coloumb's law notation and math in two different textbooks
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I Faraday cage continuity question
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11
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I Rate of work done by F on charge carrier with average velocity v
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I Will insulation on electric power lines affect the flow of power?
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5
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I Resulting magnetic field due to the passage of an AC current
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27
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I Help working on this example exam please
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8
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I An attempt to understand the associated variable conventions in circuits
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I Is this example incorrect in Agawal's book on electric circuits?
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I Why is there a freedom to choose gauge in gauge transformation?
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I Magnetic Field Intensity At the Inductor's Air Gap (+Fringing Flux)
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I Questions about cancelation of induced EMF and minimizing eddy currents
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4
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I Is the Rutherford model invalid due to a violation of Gauss's Law?
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I Magnetic field at a point along the solenoid's axis but outside the solenoid
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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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I Hall effect -- is it always applicable?
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7
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I Physics domain analysis of Voltage drop in series resistor
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7
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I Is capacitor energy the electrostatic energy of the whole system?
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I Power flow outside a wire - how close?
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I Electromagnetic Absorption in the Ocean
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5
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I The vector math of relative motion of wire-loop & bar magnet
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I Dimensional analysis in the formula for gyration frequency
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6
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I Do Electric field lines propagate by themselves away from a charge?
2
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I Why is a Dielectric slab ejected from the capacitor when energized?
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I Stored magnetic energy of solenoid
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I Help with Canonical Poisson Brackets & EM Field
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I Oscillating charged particles and E.M waves
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I Is total flux linkage λ=dΨ*Ienclosed/I or λ=N*Ψ?
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2
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I Angular momentum associated with a current carrying circular wire
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I Do valence electrons determine electrical conductivity?
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I Electric potential and potential difference
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I Magnetism: Same Pole Repulsion & Heteropolar Attraction
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I Can Conducting Current Through a Bar Magnet Cause Movement?
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I Electric Field Shielding by Conducting Sheets
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I The Mystery of Magnet Rotations: An Unanswered Question
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I Faraday's Nested Sphere Experiment
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3
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I Calculating Fluke: Subtract A or R?
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I Which does more work: gravitation or electromagnetism?
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I Units of q in Electric Field Equation
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I Origin of the Earth's magnetic field
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I Surface charge of neutral solids
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3
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I A math confusion in deriving the curl of magnetic field from Biot-Savart
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I Proof of Q=CV for arbitrarily shaped capacitors
2
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I Question on the Lorentz force: Why is the force not F=q(v×B) = F=qv×qB
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8
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I Can a pulse from a laser be treated as a Gaussian?
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9
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I Why Does Grounding Imply Zero Electric Potential in the Method of Images?
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7
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I Question about orbital and spin magnetic dipole
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2
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I 4-Current vector potential transformation under Gauge fixing
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5
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I Planck's Impedance: Exploring the Mystery of a Fictional Measurement System
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I Thomson Scattering -- elastic collisions conundrum
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I Why do brushed DC motors only use commutators, and not slip rings?
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5
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I Question regarding how to interpret dipole moment for bound charges
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I Question on Hall Effect and magnetic force
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2
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I A donut electromagnetic core comprises main section + movable section
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33
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I The implications of symmetry + uniqueness in electromagnetism
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I Are voltage and current waves in transmission lines an artifice?
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6
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