Electromagnetism Forum

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How can I safely assemble a pulsed DC electromagnet for eddy current levitation?
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3K
Photoelectric Effect (Concept)
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What is the unit value of coulomb constant(k)?
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The Importance of Gravitational Frequency Shift in GPS Measurements
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Why Do Accelerated Charges Radiate?
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Why Does a Capacitor's Charge Remain the Same When Voltage is Removed?
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Good energy efficient motor to use with 12 volt battery?
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Can a Strong Magnet Induce EMF in a Copper Wire Solenoid from a Distance?
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Motion of Electron: Background Force & Other Particles
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Magnetic Levitation : Confusion with Lenz's Law
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A capacitor Discharging into another capacitor
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Why magnetic constant is specifically 4*pi*e-7
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13K
Can a static electron be influenced by a magnetic field due to its charge?
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Plates of capacitors and dielectric constant
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Uncertainty in ammeter and voltmeter?
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4
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20K
Is Free Energy Possible Through Tesla's Discoveries?
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7
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Rolling resistance, tire tolerance, gas mileage
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9
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Electric field inside a closed conductor.
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8
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Charge on two concentric spherical shells
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1
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Could someone explain to me what electricity really is?
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10
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Electric potential on circumference of charged ring
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1
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Capacitors connected in series?
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34
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4K
What is the total charge in a series capacitor circuit?
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2
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1K
Conservation of Energy and current
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2
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1K
How is energy conserved by magnet lifting a metallic object
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3
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1K
Capacitor's dielectric and voltage?
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11
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Detecting the charge distribution within a Faraday cage
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5
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Can current be induced in a uniform magnetic field?
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5
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6K
Prefactor of classical electron radius
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How quickly does a magnetic field propagate in a vacuum?
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8
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Electron accelerating in a bent wire
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5
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Electric field outside a conductor and its surface charge
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1
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A puzzle on a Faraday cage "eating up" information
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9
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Capacitance of a spherical capacitor?
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6
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5K
A.c. current and induced force
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1
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Why isn't my Faraday Cage blocking wifi signals?
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24
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Does light cause electrons to constantly change state?
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16
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Ion Behavior in Electric Field
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5
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Question about a magnetic field
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3
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Calculating hovering of an electro plane
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1
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932
Generating Electricity from Gas: Is It Possible?
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15
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Is there an electromagnetic transducer to melt ice?
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3
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Do ionic crystals have total electric dipole moment?
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18
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Resistance vs Current: I ∝ m/a^2
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10
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Why diamagnetic material is not repelled
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1
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Reverse Recovery Current of a diode
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3
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Do Free Electrons Decrease in a Conductor with Applied Voltage?
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14
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Hydrogen atom stripped of an electron
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7
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Can Ampere's law be applied to 3D loop?
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12
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Electromagnet, current vs voltage, same?
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3
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Help needed with concept of electricity, magnetism and EM
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8
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Electromagnetic Waves through parallel plates
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8
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Can hot objects become charged?
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4
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"Water circuit" equivalents of basic electric components
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15
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Maxwell's equations and conservation principles
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3
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Power, Resistance, Voltage, Current
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5
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Magnetic Field in plane 90 degrees off Helmholtz coil axis?
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2
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Understanding Inductor Behavior in a Changing RL Circuit
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8
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2K
Thermoelectric (copper and iron at 1000C)
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2
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Parasitic capacitance influence on lead voltage
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3
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Nerve connection replace with electricity
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6
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Voltage on a electrostatic charged sphere
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3
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Would the reading in voltmeter change?
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9
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Charging a Capacitor: Puzzling Questions Answered
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19
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What area does the flux formula refer to?
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1
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Hamiltonian of an electron under EM radiation
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4
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Logical/mathematical proof for the identity of electron
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3
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Electromagnetic induction of a wire in a complete circuit
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12
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Electric Potential and Electric Potential E changes
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5
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Electrons have to move -- why?
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12
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How does an electron decide when to de-excite?
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7
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Electrical Conductivity of Copper, Gold And Silver
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2
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What is the equivalent of Electric P.E. in Magnetism?
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10
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Why does refractivity not depend on density; Lorentz-Lorenz
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2
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Dropping a magnet through the moon
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3
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EM wave from electrons V protons
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7
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Differences in Repelling Charges
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1
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Charging of resistor with resistance in parallel
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3
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Understanding Voltage in EM Circuits: A Student's Query
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3
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Why is the current the same at points A and B in a resistor?
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43
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Why Does the Kinetic Energy of Photoelectrons Rise Up to a Maximum?
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4
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If photons have no charge then how
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14
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Using magnetic fields to pickup radio freguencys
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3
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Importance of the frequency of AC mains power lines
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How to explain the overdetermination of Maxwell's equations
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21
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Calculating Current Flow in a Series Circuit with Identical Bulbs
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4
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Magnet strength between 2 magnets
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Does electronegativity affect rate of entropy increase?
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1
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Which properties of waves are influenced by the medium?
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3
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Coulomb's Law and Electric Fields
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2
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Boundary conditions of electric field?
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1
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Current induced by magnet: maximize change in flux wrt time?
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6
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Magnetic field and electric field induce one another forever
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7
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Electromagnet to attract small iron pieces
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22
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Electricity. What kind of current should I use?
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14
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Is Electric Cell Efficiency Always 50% in Closed Circuits?
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1
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Electric field on the surface of charged conducting sphere?
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3
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The Earth Harp is it a possible acoustic instrument?
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4
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3K
Average drift velocity of electron in conduct
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1
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Finding forces/torques on a permanent magnet from a coil
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1
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