Electromagnetism Forum

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B Conservation of energy and magnetism
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I Work Done in Changing Shape of Current Carrying Loop
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I Calculating Magnetic field strength of a magnet
4
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I Confusion with the direction of E-fields near conductors
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A Image Method for B-Field Calculation on Iron Plate
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B Tangential part of the potential electric field
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I What is the cause of electrical disturbances?
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I How a Battery creates a Potential difference in an electrical current
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I Another way of stating Gauss' law?
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I What is Electric Flux and How is it Calculated?
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B Problems regarding electrostatic forces in everyday levitation
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Relationship among Intensity, Frequency, and Current
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B Question regarding Beta-voltaic cells and their efficiency
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I Moving charges in electrostatics
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B The resistance of an ohmic conductor
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4
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I Why is initial current zero in an RL circuit with an emf?
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5
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Why Doesn't Electric Force Cause Wires to Move?
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15
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Waveform of Classic Electromagnetic Induction
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222
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Electrostatic energy in finite space
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14
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Inductance of Parallel Coils on an uncut toroid magnetic core
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13
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Why does a magnet do work on a flying nail?
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2
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Force on a charge centered around a rotating magnet
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16
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Why do we use Bohr's model of the atom in electrostatics?
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9
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Magnet repulsive force -- how long does it last?
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43
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Is Current in Superconductors Truly Infinite?
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Is it Possible to Create a Large but Low-Powered Electromagnet?
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Extracting an electric grounding spike
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9
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Polarization of EM waves is preserved after reflection/refraction -- Why?
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10
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"Barlow's wheel" used as an electrical generator
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7
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Where are the pressure nodes on a standing acoustic wave in water?
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Proper Lorentz transformations from group theory?
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EM wave/radiation from which equations?
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3
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Why is the energy of a circuit in a magnetic field at infinity zero?
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How can there be neodymium magnets when neodymium is paramagnetic?
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The back way for deriving Maxwell's Equations: from charge conservation?
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13
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Calculating Electromagnetic Wave Intensity in a 30 sq m Room
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How closely do the magnetic fields generated by geodynamos align?
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2
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922
Plasma Experiment Involving Magnetic Fields
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Is My Magnet's Behavior Influenced by the Metal Plate?
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Electrons in Electric Fields: Examining Changes
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4
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Lorentz force acting upon an electron moving in a circle
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14
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Maxwell Equations, Lorentz Force and Coulumb Force
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2
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How to find electromagnetic force between nucleus and electron?
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4
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How does the strength of an electric field relate to its direction?
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2
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How Do Electromagnetic Waves Propagate in Space?
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Hamiltonian for a charged particle in a magnetic field
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3
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Calculating flux density of radio telescope
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28
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Qualitative explanation of Magnetic Braking
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6
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Electromagnetic radiation (EMR) threshold
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2
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What is the "free charge" in Langmuir oscillations for T>0?
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Superconductor Flux pinning/Meissner effect with electromagnets?
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1
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If an electron is repelled by another electron how do we get current?
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18
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Moving electric field effect on dielectric/gas
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1
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Convection current in electricity
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6
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Magnetism -- Clarification about North and South magnetic poles
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15
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Why don't we use the antiderivative factor for Average Voltage
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How do metal balls induce stability in a tetrahedral magnet arrangement?
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2
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Some questions about capacitor discharging
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7
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Is Coulomb's law valid in a non-inertial frame?
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Electric field acting on the source charge
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Bar magnet made from smaller opposing bar magnets
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Equal Peak Voltages in a Circuit: Is It Always True?
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38
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Electromagnetic wave equation - phase and amplitude
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6
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Induced Electrical Field (Maxwell-Faraday's Law)
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4
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Poynting vector and single electron in free space
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8
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Lenz's Rule and Ferromagnetism
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EM wave reflected or transmitted?
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8
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How to Use Duality in Computational Electromagnetic Problems
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1
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Magnetism used as a repulsive force
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7
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Can magnetic fields do positive work in certain circumstances?
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30
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Gravity equivalent of Ohm's law
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32
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Do charges always lie on the inner surface of capacitors?
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22
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Question about potential and current in potentiometer circuit
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11
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How does smoothing an AC voltage with a capacitor work?
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3
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High School Magnetic Field Lab
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Does Watt's Law apply to flowing water in a pipe?
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2
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Magnetic field does no work -- true in all branches of physics?
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3
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Can a Toroidal Core and Hall Effect Sensor Create Transparent Permanent Memory?
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Meaning of F = -dU/dx for capacitors
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Electrical energy stored by charged concentric spherical shells
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Principle of superposition for charges/induced charges
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Question about Ampere's Force Law derivation
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9
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Changes in electric field lines as a result of an oscillating charge
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Can Two Identical Charged Conductors Have a Potential Difference?
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5
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Capacitance of a Sphere: A Quick Calculation Method
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What is the relationship between voltage and flux in Faraday's Law?
2
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Electromagnetic inertial reaction force?
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12
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Calculating the force on an electron from two positive point charges
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Symmetry associated with current conservation
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A magnetostatics problem of interest 2
2
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Potential Gradient for individual charges and parallel plates?
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33
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Permanent magnet's magnetic field calculation
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23
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What do we mean when we say that charge is moved or transfered
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24
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Charged particle oscillation about the origin
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4
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What do we mean by the charge on a body is denoted by "q"?
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36
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Conservation of Energy on Current-Carrying Wire in Magnetic Field
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Confusion when dealing with loops and surfaces with Maxwell equations
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Demagnetizing Magnets: Alternating & Direct Currents
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3
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Which of these magnets should have the strongest strength at 10cm?
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19
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Electrical Permittivity of Classical Vacuum - Physical?
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16
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