Electromagnetism Forum

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Magnetic Energy: How Does a Compass Needle Move?
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Calculating the frequency of a free electron
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Resistors - Current equal in Series
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Physics Equations for Electrical Power
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Magnetic field created by a current carrying wire
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Minimum breakdown voltage in Neon, Electrode spacing in mm
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Is there a B field in a charging spherical capacitor?
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Two-stage electron Wakefield acceleration
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Skin effect and electric shock question
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Is there a relationship between voltage and resistance?
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How Is Electric Potential Difference Measured Without Specific Distances?
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Why does Fleming's right hand rule apply for induced current
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How does sound intensity affect the current produced by a mic?
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Maxwell equation are derived in which coordinate system
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How is current induced in the plasma in a tokamak?
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Electromagnetic coil and capacitors vs resistance
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Magnetic repulsion between a permanent magnet and an air coil
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Moving metal object in a magnetic field
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How Do Electric Potential, Potential Energy, and Work Interact in Physics?
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What actually makes a magnetic field?
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Formula for Magnetic Field of Cylindrical Magnet | R,L Values
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Small question about maxwell's equation curl of H
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Eddy Current Speedometer Experiment
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Why does a resistive wire heat up from current flow?
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Will water flow ever stop if we increase resistance?
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Is like currents of opposite charge attract or repel each other?
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Polarity of magnetic field in a conducting wire
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How do you calculate voltage from Coulomb’s equation?
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Why is there interference if EM waves don't interact?
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Xc and XL relation after a change of frequency
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3
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Electromagnetic waves and other waves
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Current Flow Through a Common Part of a Circuit (batteries and light bulbs)
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18
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If charge is decreasing with time then we write I =-dq/dt.
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Electromagnetism and special relativity
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Speed, energy, power and air resistance
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4
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Gravity and radiation from charge
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5
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Monitor restarts when I make an electric arc
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Magnetic field of a circular electromagnet?
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7
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Magnetic flux is the same if we apply the Biot Savart?
2
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Current Carrying Wires: How Ampere's Law Affects Safety
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4
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In layman's terms , how strong is a 3 Tesla Magnet?
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4
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Calculating induced voltage in two parallel conductors
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7
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Voltage drop conceptual questions
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10
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Do photons carry the electric field?
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2
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Q: Generating Electricity with Charged Objects
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Dielectric constant of air with temperature change
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Suspend a magnet on a pendulum above a repelling magnet
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What Molecular Mechanisms Cause Different Arc Phenomena in High Electric Fields?
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Does electric charge bend anything?
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15
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An interesting question about the divergence of a current density
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10
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Saturation voltage for photoelectric current
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Force on a ferrous object in a saturating magnetic field
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Electromagnetic field and frequency
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How are Maxwell equations satisfied in Raman scattering?
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3
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Curious question regarding Faraday disc / induction, etc.
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Electrical conductivity of liquid argon
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Is Feynman's "flux rule" a popular name?
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6
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Evidence for global magnetic grid or pseudo science?
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Understanding the Coaxial Inductor: A Study of its Electric and Magnetic Fields
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How do phone chargers work? (thin cable question)
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Formal difference between electrostatics and magnetostatics
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Electric Field of a Line of Charge
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Understanding the Relationship Between Magnetic Field Lines and Force
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When Can We Use the Right Hand Rule to Find Magnetic Field Direction?
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Lorentz transformation and Lorentz force
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Current & Ohm's Law: Continuous vs Discrete?
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11
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What Happens to Orbital and Spin Momentum of Free Electrons in Iron?
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Inductance of a Solenoid Around a Conducting Sphere?
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Analogy for Electrical potential
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Electric Potential due to a single point charge
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17
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Potential Energy of an Electron near a negative source charge
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10
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Instrument to measure the frequency of sound
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11
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Modeling an Einstein solid that is coupled to a paramagnet
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Transformer under an external magnetic field.
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21
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Basic question about Halbach magnet array
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AC magnetic field and how an electric motor works....
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Is Poynting vector the electromagnetic density of momentum?
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Jump conditions for electric field across an interface
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Faraday's Law--Confusion about terms in the integrals
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Hot metal lid on cool surface has resistance when pulled up
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Calculating Rotating Magnetic Field
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Calculating the flux from a flashlight
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12
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Current in Series Circuit: .5A Charge Flow?
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25
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What does electrical PE turn into when charges attract?
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Ohmic and non-Ohmic conductors
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Does Ohm's Law Apply to a Circuit with Current but No Voltage?
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Calculating Magnetic Field Strength in a Stator DC Motor
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Meaning of Current in Ohm's law
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Is it possible to transmit frequency of a solid object?
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Is there a magnetic field in a capacitor during leakage or discharge?
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What's the relationship btw frequency, wavelength, and temp?
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Does current flow back to the power plant through the ground?
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Stopping a battery from shorting (while driving a magnetic coil)
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What causes a voltage drop over a resistor?
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21
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Altered inductance around a solenoid in a cryostat (from Eddy currents?)
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1
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Homemade electromagnet, considerations - strength
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6
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Positive/negative electron transfer?
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2
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Electric Field induced by a Magnetic Field inside a Solenoid
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Are flux vortices predictable?
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2
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Elementary Charge: Explaining the Integer Multiple of e
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13
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