Electromagnetism Forum

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Undergrad Controlling the location of a spark between two parallel rods
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Undergrad Does current decrease inside a wire or does it increase it's velocity?
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Graduate Form of energy momentum tensor of matter in EM fields
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High School Direction of drift velocity vs direction of current
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Undergrad Are Maxwell's equations linearly dependent?
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Undergrad Help understanding Maxwell's Equations please
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High School How would a radial component of induced electric field makes flux ≠ 0
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High School What is electromotive force? What's its relationship to Voltage?
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High School Dimensional Spin Inspection
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Undergrad Equality of Gravitational and Electrostatic force
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Undergrad How is Potential Difference Created across a Resistor?
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Undergrad Did Feynman make a mistake in the drawing of moving charges?
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Undergrad Confused about electromotive forces
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Undergrad Is the Poynting Vector Field the Only Factor in Energy Flow in Circuits?
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High School Initial current in an RLC circuit
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Graduate NMR flip angle - angle of nutation
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Undergrad Does displacement current create a magnetic field? And Lorentz force?
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High School The voltage between two points
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High School Antenna induction, oscillating circuit generating EM Waves
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Graduate Saha Equation In Plasma for Muons
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High School What happens to a photon's energy when it is refracted?
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Electron Spin and current-induced magnetic fields
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Undergrad Speed of magnetic flux propagation?
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High School Possible movement of this magnet?
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Undergrad Question about Activating Solenoids that are facing each other
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Undergrad How to calculate the ring resonator radii via Laplace?
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Undergrad Iron core barely boosting field strength
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Undergrad Problem with one of the premises in electrostatic pressure theory
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Undergrad Getting the sign right with the work-energy theorem
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Undergrad How Do Eddy Current Dampers Work in Space Applications?
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Graduate An electrolytic capacitor keeps charging by itself
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Undergrad Force between opposing magnets
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Undergrad Does Diamagnetism Occur Even in a Constant Magnetic Field?
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Undergrad Qv x B force in electron's proper frame
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Diamagnetism & levitation of pyrolytic graphite explanation
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Undergrad Can Electromagnetic Levitation Make an Entire Apparatus Go Skyward?
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Undergrad Can a permeable but non-magnetic rotor be used in an electric motor?
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Undergrad Effect of Fringe Fields for a Bending (Dipole) Magnet on Field Integral?
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Undergrad Why Do Some Theorists Claim Cosmic Inflation Dilutes Magnetic Monopoles?
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Undergrad "Strange contradiction" that Maxwell found and resolved
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Undergrad An electrolytic capacitor charges by itself?
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Undergrad How Does a Magnetic Repulsion Machine Work?
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Undergrad Resonant cavity with non-resonant dielectric
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Undergrad Physical approximation to inverse square law using magnet(s)
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Undergrad How large is the volume of a photon interacting with matter?
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Undergrad Maxwell's equations in the presence of matter -- Derivation
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Graduate Finding potential of a dipole outside of a sphere
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Undergrad Charging Capacitor with one terminal grounded
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High School Magnetic field produced by an electric current
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Undergrad Work done by electric field of an irregularly shaped conductor
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High School How can scalars like voltage, impedance, etc. be added like vectors?
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Undergrad Mutual inductance in a transformer
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Undergrad How to use geometrical symmetries -- general advice? (Vector potential)
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Undergrad Reason for Opposite Signs for Terms in Faraday's Law and Ampere's Law
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Undergrad Quadrupole moment tensor calculation for ellipsoid
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Undergrad Mutual inductance of bifilar winding, vs transmission line parameter
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Undergrad Where is the lost energy in this example?
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Undergrad Work to move a point charge from infinity to the centre of a charge distribution
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Undergrad Conservation of charge in the Universe
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Undergrad How do we know that both plates of a capacitor have the same charge?
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Undergrad Do the plates of the capacitor exert a force on each other?
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High School Understanding magnetic flux change during the falling of magnet
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High School Changing magnetic polarity of an electromagnet
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Undergrad Understanding dissipation of energy in a resistor through the Drude model
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Undergrad Question about the current through a strong insulator
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High School LC resonance with high Q factor, Inductor with non magnetic core
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High School Inductive Reactance of Solenoid with Solid Metal Core With respect to frquency
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Undergrad Question about Field Strength of Solenoid Positioned Near a Magnet
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Undergrad Resistance and specific resistance relationships
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High School What's the difference between these two curves for AC Generator?
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Graduate Ponderomotive force and conservation of momentum
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Undergrad Capacitor connected to voltage source, vary plate separation
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Undergrad Structural difference between soft and hard ferromagnets
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Undergrad Do electric currents depend on the frame of reference?
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Undergrad Simple electromagnetic wave including delay
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High School Current-carrying coil and solenoid
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Undergrad Generating Divergence Equation In Cylindrical Coordinates
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Undergrad Is this solenoid / permanent magnet configuration possible?
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High School Can I use this method to charge a metal sphere?
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Undergrad Alternating current in a perfect conductor
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Undergrad What causes the unexpected annihilation point in the Magic-Tee configuration?
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Undergrad Problems in classical electrodynamics: Only for point-like particles?
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Graduate Visualising visible light Fluorescence
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Undergrad Light intensity required to shine a light through an opaque object
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High School Definition of ground potential in infinite sheet charge distributions
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Graduate Proving an equation in a book about Periodic Structures
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High School Symmetry regarding induced potentials?
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Undergrad What is the ideal fluid and setup for observing Magnetohydrodynamics?
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High School Electromagnetic radiation interacting with a magnetic field
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Undergrad Permanent Magnetic Dipole in an electromagnetic field
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High School Is the Direction of Magnetic Fields Truly Conventional?
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Graduate Magnetization and magnet poles
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Undergrad How to Measure the Energy of an Electromagnetic Wave?
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Undergrad Which law defines the AC inducing voltage in the inductor?
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Undergrad Does a Railgun's Current Violate Conservation of Momentum?
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Graduate Identifying Magnet Grade for FEMM Simulation: Neodymium Cylinder Magnets
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Graduate Electric field of infinite sheet with time dependent charge
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Undergrad What causes skin effect in AC currents?
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High School Measuring electric field vs magnetic field
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Undergrad Does B=0 at points out of the plane containing and normal to a point current I?
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