Electromagnetism Forum

Post thread
Graduate [Q]One question about Magnetic boundary conditions.
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Why is the electric potential continuous
  • · Replies 16 ·
Replies
16
Views
21K
Graduate Large scale electromagnetic hover sculpture HELP [really quite ]
  • · Replies 11 ·
Replies
11
Views
6K
Graduate Free and bound charge at dielectric-conductor interface
  • · Replies 1 ·
Replies
1
Views
7K
Undergrad Voltage Delays: Inertia, Inductance & Speed of Light
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Application of Noethers to Lorentz force Lagrangian with boost
  • · Replies 2 ·
Replies
2
Views
2K
High School What Powers the Attraction Between Two Permanent Magnets?
  • · Replies 19 ·
Replies
19
Views
5K
Graduate Questions about the nature of the electromagnetic spectrum
  • · Replies 6 ·
Replies
6
Views
5K
Undergrad Examining EM Radiation and Charge: The Truth About Emission and Movement
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Photoelectric Effect: Explaining Wavelength Effect on Electron Emission
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Sinusoidal waves and Maxwell eqns
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Force on a Magnetic Dipole Around a Coil
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Divergence-free field has closed field lines?
  • · Replies 9 ·
Replies
9
Views
8K
Undergrad What Is Charge and Where Does It Come From in Physics?
  • · Replies 14 ·
Replies
14
Views
40K
Graduate Non-Uniform Plane Waves, Multiple values of E and H?
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad Conceptual question about electric flux
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad Equation to relate voltage to distance of a spark
  • · Replies 1 ·
Replies
1
Views
17K
Graduate How Much Power to Generate 400,000 Gauss EMF?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Parallel conducting currents and the relevance of reference frames.
  • · Replies 1 ·
Replies
1
Views
3K
High School Setting Up Basic Circuits with a Multimeter
  • · Replies 2 ·
Replies
2
Views
2K
High School How does a given wave acquire it's frequency ?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Is E Proportional to 1/r for a Ring and Central Electrode Setup?
  • · Replies 8 ·
Replies
8
Views
8K
Undergrad Magnitude Of Force Between Magnets
  • · Replies 1 ·
Replies
1
Views
5K
Undergrad Why Doesn’t a Charge Move in the Direction of the Force in a Magnetic Field?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Electron 'Orbits' and the Uncertainty Principle
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Question about rf signals(yes i think this does relate to physics)
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Jump In The Capacitor Voltage?
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad EM Waves: Oscillation vs. Translational Motion
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Classical Electron Oscillator Model, quantum analogy
  • · Replies 5 ·
Replies
5
Views
6K
Undergrad Where does the energy of a discharged capacitor go?
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Faraday's law and complex number
  • · Replies 14 ·
Replies
14
Views
3K
Undergrad Ohmic loss, ohm's law, resistance etc
  • · Replies 5 ·
Replies
5
Views
29K
Graduate Magnetic field/simple current loop
  • · Replies 9 ·
Replies
9
Views
4K
High School How Do AND/OR Logic Gates Work with Diodes?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Accelerating magnet and electromagnetic induction
  • · Replies 20 ·
Replies
20
Views
7K
Undergrad Current Flowing Through RC Circuit (Charging)
  • · Replies 3 ·
Replies
3
Views
13K
Graduate Charge.E field and Faraday's cage
  • · Replies 19 ·
Replies
19
Views
4K
Undergrad Dielectric constant and strength
  • · Replies 1 ·
Replies
1
Views
6K
Undergrad Magnetic field of an infinite plane
  • · Replies 6 ·
Replies
6
Views
7K
Undergrad Converting magnetic field strength into a vectorial distance.
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Understanding Length and Area Elements for Electromagnetic Laws
  • · Replies 2 ·
Replies
2
Views
2K
High School Electric field and current in a conductor
  • · Replies 7 ·
Replies
7
Views
16K
Undergrad Understanding Electric Flux and Its Physical Significance: Gauss' Law Confusion
  • · Replies 13 ·
Replies
13
Views
12K
Undergrad High-power electricity through Salt Water
  • · Replies 3 ·
Replies
3
Views
6K
Graduate How Does a Plane Electromagnetic Wave Exist in Three Dimensions?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Details of how electricity and radio work
  • · Replies 10 ·
Replies
10
Views
4K
Graduate How can Maxwell's equations be used to derive electromagnetic wave phenomenon?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad What are the image charges inside the spheres?
  • · Replies 17 ·
Replies
17
Views
5K
High School Magnetism Another Element to Manipulate?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Is there a calculation to work-out the products of simple magnet-coil induction?
  • · Replies 1 ·
Replies
1
Views
2K
High School Equation help desperately needed Faraday Equation.
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Potential Energy in a capacitor
  • · Replies 5 ·
Replies
5
Views
14K
Graduate Water Electrolysis and Water Dissociation with RF waves
  • · Replies 1 ·
Replies
1
Views
8K
Undergrad Why negative charge moves from low to high potential?
  • · Replies 8 ·
Replies
8
Views
8K
High School Taser: can you disperse or ground the charges?
  • · Replies 2 ·
Replies
2
Views
3K
High School Bicycle Dynamo Light Circuit: Understanding the Wiring and Functionality
  • · Replies 4 ·
Replies
4
Views
7K
High School Where do magnets get their energy from?
  • · Replies 20 ·
Replies
20
Views
26K
Undergrad Understanding EM Radiation: Impact of Changing Magnetic and Electric Fields
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Understanding Delta PE: Why is it Equal to -W?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Why is the electric potential equation incorrect in this paper?
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Question about stresses in material due to elastic and piezoelectric
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Stop Free Electron Flow in DC Unshielded Wire
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad Modeling Magnetic Fields: A Beginner's Guide
  • · Replies 3 ·
Replies
3
Views
3K
Graduate A question about Faraday's law
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Maxwell Stress Tensor: Explained for Ben
  • · Replies 9 ·
Replies
9
Views
4K
High School Can we use step up transformer as step down
  • · Replies 5 ·
Replies
5
Views
6K
Undergrad Vacuum Capacitance: Value & Dependency?
  • · Replies 1 ·
Replies
1
Views
10K
High School Capacitance - Dielectric Constant Relation?
  • · Replies 1 ·
Replies
1
Views
9K
High School Boiling water using electric current
  • · Replies 11 ·
Replies
11
Views
23K
Undergrad Why Does Voltage Change with a Constant Power Supply in a Rheostat Circuit?
  • · Replies 1 ·
Replies
1
Views
3K
High School Resistance of a resistor and the energy and power dissipated
  • · Replies 13 ·
Replies
13
Views
14K
Undergrad Mechanical Energy and Electricity
  • · Replies 4 ·
Replies
4
Views
7K
Graduate Does an electron have a continous range of energies?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why is the right-hand rule used for both current and angular momentum?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Electron Group Waves & Electromagnetic Waves, energy delivery in a wire
  • · Replies 10 ·
Replies
10
Views
11K
Graduate Sign of permittivity/permeability
  • · Replies 12 ·
Replies
12
Views
6K
High School Why Do Like Charges Repel & Unlike Charges Attract?
  • · Replies 12 ·
Replies
12
Views
3K
Graduate Gauss' Law: Cylindrical Symmetry
  • · Replies 4 ·
Replies
4
Views
7K
Undergrad Relationship Between Watts & Hertz In Radio Waves Frequency
  • · Replies 2 ·
Replies
2
Views
3K
High School Does the difference in charge play a role in electromagnetism such as
  • · Replies 6 ·
Replies
6
Views
2K
High School Capacitors in series and Kirchoff's law
  • · Replies 53 ·
2
Replies
53
Views
15K
Undergrad Solinoid Construction: Bobbin Material and Rod Direction
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Need help explaining two equations for similar events
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad How does a dielectric increase capacitance, conceptually.
  • · Replies 4 ·
Replies
4
Views
45K
High School Amplitude-frequency relationship
  • · Replies 3 ·
Replies
3
Views
38K
Undergrad Make AC Electromagnet: Tips & Tricks From Experts
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad Internal resistance of a batery
  • · Replies 1 ·
Replies
1
Views
2K
High School Work with Magnets: Generate Energy from Magnetic Force
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Maximizing Magnetic Pull for Object with 2 Halves: Cylindrical vs Ring Magnets"
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Temperature Dependence of Dielectric Constants
  • · Replies 1 ·
Replies
1
Views
4K
High School Charge a insulated metal sphere with a negative charge rod
  • · Replies 1 ·
Replies
1
Views
10K
Undergrad Air resistance on a rotating cylinder
  • · Replies 1 ·
Replies
1
Views
5K
Undergrad How Many Farads Equal 1 Amp Hour at 12V for an E-Bike?
  • · Replies 3 ·
Replies
3
Views
92K
Undergrad Are 3D Molecule Animations Valuable for Studying Elements and Compounds?
  • · Replies 2 ·
Replies
2
Views
9K
Undergrad Make grape plasma in magnetic feild?
  • · Replies 1 ·
Replies
1
Views
4K
High School Find High Voltage Power Supply on a Budget
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad AC Circuit: RMS & Mean Current Explained
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Question about Photoelectric Effect versus Compton Scattering.
  • · Replies 4 ·
Replies
4
Views
7K
Graduate How Does Capacitance Change with Different Dielectrics in Series?
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Magnetic field of a linear conductor
  • · Replies 1 ·
Replies
1
Views
7K