Ask the Van Questions by Subcategories

Electricity and Magnets: Electromagnetism

• Magnetic Forces on Conductors
• Origin of Magnetism
• Currents in Demagnetization
• Induction and Eddy Currents
• Microwave Magnets
• Inductance of Counter-wound Coil
• Are Electromagnetic Waves Sinusoidal?
• Light and Force
• Which Particle is Mediated in Electrostatic Force?
• Rotating Charges
• There Is Only One Type of Magnetic Field
• Momentum Conservation With Electromagnetism
• Practical Cyclotron Problems
• Earth's Gravity and Magnetism
• Field Strength and Field Lines
• Light Losing Energy
• Lorentz-contracted Current
• How far do Magnets Interact?
• Car Trigger Wheels
• Microwaves and dry Ice
• Energy Conservation in Magnets
• What Produces a Magnetic Field?
• Blocking 2.4 -- 5 GHhz Radiation
• Electromagnetic Induction and Current
• Why Does the Power Remain Constant in a Transformer?
• How do Electrons Lose Energy?
• No Aluminum Core Transformers
• Can Light Induce a Voltage in a Coil?
• Is Current a Scaler or Vector Quantity?
• Loss of Field After Turning off Magnet Current
• Magnetic Flow Meters: how do They Work?
• Joule Thieves
• Voltage on Mercury Flowing in Magnet
• Charged Particle Through Torus
• Why do we Call Positive Charge Positive and Negative Change Negative?
• Particle and Antiparticle Magnetic Fields
• Spinning Water With a Magnet and Current
• Can you Make an Electro-magnet With Mercury?
• Heating From Magnetic Eddy Currents
• Fields From Charge and Current Distributions
• Conservation of Momentum and Electromagnetism
• Light Through Magnetic Nano-torus
• Intuition and Magnetic Fields
• Magnetic and Electric Lines of Force
• Fun With Delicate Magnets
• Can you Push Light With a Magnetic or Electric Field?
• Can Electromagnetic Waves Have Magnetic Monopoles?
• Relative Motion and Electromagnetism
• How to Increase Eddy Current Braking
• Spinning a Magnet About its Axis
• Why do Electrical Signals Travel Fast?
• Can we Calculate Radioactive Decays?
• Eddy Current Braking
• Why Doesn't DC Work With a Transformer?
• Energy Nodes in Propagating Wave
• Magnetically Induced Currents in Copper Pipe
• Generation and Harmful Effects of Tera-Hertz Waves
• Are There Shockwaves of Light Like Sonic Booms?
• Force of Light
• What Sets the Electron Charge?
• Spins in a Stern-Gerlach Experiment
• Why is Coulomb's law Inverse Square?
• Magnets and Work on Current Loops
• Low Self-inductance
• Induction Stove Tops
• What Materials Feel the Casimir Effect?
• Coulomb's law and Gauss' Law
• Mu-metal Transformer Core
• Magnets Under Microwaves
• Why is the Magnetic Force Perpendicular to the Motion
• Quantized E-M
• Electromagnetic Reflection
• Velocity of Light in Media
• Electromagnet did not Work
• Are Photons Charged?
• Magnetism and Relativity
• Gravity From Extreme Magnetism
• Electromagnetic Energy Loss
• Why Isn't my Electromagnet Working?
• Magnets and Eddy Currents
• Why do Moving Charges Produce Magnetic Fields?
• Flowing Saltwater in Magnets
• Does Magnetism Travel Through all Materials?
• Energy Flow in a dc Circuit
• Relativistic Transformations of Electric and Magnetic Fields
• Electromagnetic Motors and Free Energy
• Does a Photon Have Momentum?
• Why Inverse Square Distance in Coulomb Law?
• Trying to Shield Iron From the TSA?
• Ed Leedskalnin and Magnets?
• Electron Radiation From Bohr Atom
• Lorentz Contraction and Current
• Radio Waves Move Plasma
• Induction Heating
• Ac Magnet Poles
• Cell Phone Photons
• Magnetic Action at a Distance
• Mercury Motor
• Eddy-current Motor
• Boiling oil in a Microwave?
• Radio-frequency Photons
• DC Input to a Transformer?
• Generating Electricity With a Magnet
• Why is Light Transverse?
• Mass and Speed
• Magnetic Charge and Maxwell's Equations
• Momentum Kick From Flashlight
• Momentum of Light and Weirdness
• Harm From Blue-tooth?
• Can Magnets do Work?
• Light Carrying Particles
• Lenz's Law: Magnets Slowed by Eddy Current
• Discover Magazine Covers Magnetism in Baloney
• Electromagnetism Without Constraints
• What is a Theory of Gravity and Magnetism?
• Thermal Radiation Isolation?
• Faster Than Speed of Light?
• Does the Photon Have a Structure?
• Light Transmission Through Three Polarizers
• Electron Spin Resonance
• Earth's Magnetic Field
• Why String Theory?
• Electric and Magnetic Transforms
• Inductance Losses
• Magnetically Induced Electric Current
• Energy From Earth's Field
• Gauss' Law
• Maxwell and C.
• Field of a Single Particle?
• Waves and Fields
• Magnetism and Relativity
• Solenoid Field
• Magnetic Motions
• Sources of Electric Field
• Solenoid Ends
• Magnetism and Relativity
• Conductors and Magnets
• Unbalanced Electromagnetic Forces?
• EMF, Potential Difference, Terminal Potential?
• Fleming''s Rule
• Gaussian Surface
• Relativistic Induction
• Picking Wire Gauge
• Why Fundamental Constant Values?
• More on Magnetic Forces
• Different Forms of Magnetic Force
• Helical Paths in a Magnetic Field.
• Magnetic Monopoles
• Casimir Tricks?
• How not to Make an LED
• Simple Generator
• Steering Electrons in a Cathode ray Tube.
• Magnetic Generators
• Magnet Drive?
• Magnetic Field Calculation
• Electromagnetic Induction and Cooking
• Finding out Which is the North Pole of an Electromagnet
• Electromagnet
• How Electrical Circuits Work
• Maxwell’s Laws
• Electromagnetism
• Fun With Electromagnetism
• Powering-Up Home-Made Electromagnets
• Controlling the Poles of a Magnet
• Electromagnetic Induction and Windmills
• Alternating Current and Magnets
• Linear Accelerator
• Twisted Wires
• Electromagnets
• Making a Magnetic Field
• Variable Electromagnet
• Photons as Carriers of the Electromagnetic Force
• Number of Batteries and Electromagnet Strength
• A big Magnet and the City of the Future
• Static and Moving Electricity
• Wireless Electricity?
• Magnetic Field Strength at the end of a Solenoid
• Why There are no dc Transformers
• Field Direction Inside a Solenoid
• Magnetic Field in Solenoid
• Magnetism and Relativity
• Stronger Electromagnets With More Turns
• Electromagnet
• Transformers
• Electromagnetic Energy and Cell Phones
• Cell Phone Interference
• Magnetic Energy Storage
• Plasma Ball Radio Interference
• Coiling a Magnet
• Field Multiplications
• Crazy as a Turntable
• Wavey Vision?
• Home-made Magnet
• Superconducting Transformers
• How do you Make a Magnet
• Induction
• Electromagnetics
• Electromagnets at Home
• Faraday's law of Induction
• Electromagnetic Waves
• Why Constant Speed of Light
• Vector Operations
• Debugging an Electromagnet That Doesn’t Work
• Light and Sound in Space
• Hot Electromagnets
• Cordless Power
• Magnets and Currents
• Perpetual Motion
• Electromagnetic Forces on Charged Particles
• Light and Dark
• Standing Waves in Cylindrical Cavities.
• Green Stars?
• Magnetic Field of a Solenoid
• Cathode Rays are Different Than Light
• Cathode ray Discovery