Electromagnetism Forum

Post thread

Threads

Undergrad Magnetic Field Flux of Neodymium Magnets

  • sritter27
  • · Replies 1 ·
Replies
1

Undergrad Radio Frequency Photons / Electromagnetic Radiation Question

  • tiredryan
  • · Replies 6 ·
Replies
6

Graduate Solving Maxwell's Equations in Laser Cavity | Tips and Troubleshooting

  • atha
  • · Replies 1 ·
Replies
1

Undergrad What is magnetism on a particle level?

  • Spacec0wboy
  • · Replies 4 ·
Replies
4

High School Flow of current. Conductors and Insulators.

  • girlzrule786
  • · Replies 1 ·
Replies
1

Graduate Electric potential of a point charge inside a spheric conductor

  • Termotanque
  • · Replies 11 ·
Replies
11

Graduate Measuring Electric & Magnetic Fields: Uncovering the Mystery of Gauge Potential

  • Lapidus
  • · Replies 2 ·
Replies
2

Graduate Can the Lorentz force explain magnetic attraction when E=0?

  • kmarinas86
  • · Replies 5 ·
Replies
5

Undergrad Depth of penetration of electromagnetic waves

  • nousername
  • · Replies 2 ·
Replies
2

Graduate Time-Varying Electric Field in a Wire

  • kmarinas86
  • · Replies 11 ·
Replies
11

Undergrad Magnetic Susceptibility of different compounds

  • physicsmonger
  • · Replies 3 ·
Replies
3

Graduate The work done by two electromagnets

  • kmarinas86
  • · Replies 8 ·
Replies
8

Undergrad Ring magnets levitation question

  • carmatic
  • · Replies 19 ·
Replies
19

Undergrad Shock when touching an electric fence

  • BLaH!
  • · Replies 1 ·
Replies
1

Graduate Thermoelectric Effect in Peltier's Effect: Why Not Joule's Heating?

  • kapil phyreak
  • · Replies 1 ·
Replies
1

High School Current and Speed of Light: True or False?

  • kapil phyreak
  • · Replies 6 ·
Replies
6

Graduate Radiation from accelerated charge

  • azaharak
  • · Replies 4 ·
Replies
4

Graduate Plane waves: sign of Re(ε), Re(μ) in passive media, attenuation angle

  • eliotsbowe
  • · Replies 4 ·
Replies
4

Graduate Solid angle & flux out of cone

  • mathkid81
  • · Replies 1 ·
Replies
1

Undergrad Diameter of a soap bubble increases when it is charged

  • Manis
  • · Replies 4 ·
Replies
4

Undergrad A flaw in the electrical current model?

  • rotatingjedi
  • · Replies 3 ·
Replies
3

Graduate Galilean invariance of Maxwell equation

  • sadegh4137
  • · Replies 5 ·
Replies
5

Undergrad Does Magnetic Permeability Affect Magnet Lifting Power?

  • SMD1990
  • · Replies 2 ·
Replies
2

Undergrad Switch ratings conversion from AC to DC

  • DrAlloway
  • · Replies 1 ·
Replies
1

Undergrad Rectifiers and electrical networks

  • barendfaber
  • · Replies 5 ·
Replies
5

Undergrad Two circuits connected by a single wire, will there be current in wire?

  • jaumzaum
  • · Replies 22 ·
Replies
22

Undergrad What is Plasma Electrolysis and How Can It Produce Cold Fusion?

  • Runei
  • · Replies 1 ·
Replies
1

High School Physically - Electricity and Volts

  • DwithQs
  • · Replies 2 ·
Replies
2

Undergrad What causes current to curve like a liquid around an insulator?

  • meldraft
  • · Replies 7 ·
Replies
7

Undergrad Voltage and Energy and lack of directionality

  • ninevolt
  • · Replies 3 ·
Replies
3

High School Magnetizing Magnets Through Steel: Answers to Your Questions

  • barendfaber
  • · Replies 8 ·
Replies
8

High School Electron Distribution in a Simple Circuit

  • JakeyG14
  • · Replies 5 ·
Replies
5

Graduate Simultaneous radio frequency energy reception

  • solar flex
  • · Replies 23 ·
Replies
23

Undergrad Formula for RLC circuit amperage

  • jforce93
  • · Replies 5 ·
Replies
5

Undergrad Hydrogen bonding and Oxygen electron count ? (how)

  • karen_lorr
  • · Replies 9 ·
Replies
9

Undergrad Hi,I hope someone can help me. Looking at a magnetic generator,

  • barendfaber
  • · Replies 3 ·
Replies
3

Graduate Calculating Kg Force for Generating 1 Watt of EMF in Magnetic Generators

  • barendfaber
  • · Replies 2 ·
Replies
2

Undergrad Calculating charge density of an atom

  • mitch_1211
  • · Replies 2 ·
Replies
2

High School Why do high-frequency sounds make people more alert and create tension?

  • Nemui
  • · Replies 6 ·
Replies
6

High School What happens to magnets held in certain position indefinitely?

  • PJ2001
  • · Replies 2 ·
Replies
2

Undergrad Human body grounding a charged object

  • damosuz
  • · Replies 2 ·
Replies
2

Graduate Photo-electric effect: why did they expect this?

  • nonequilibrium
  • · Replies 27 ·
Replies
27

Graduate Energy balance from mechanical to electrical energy

  • PhiliosKassin
  • · Replies 3 ·
Replies
3

Undergrad What is the direction of the magnetic field from a wire with current?

  • jforce93
  • · Replies 4 ·
Replies
4

Undergrad Induced charges and electrostatic potential

  • lackos
  • · Replies 4 ·
Replies
4

Graduate Jones vectors and electric field of a wave

  • Lindsayyyy
  • · Replies 8 ·
Replies
8

High School Terminal PD vs EMF: When is PD Greater?

  • Himal kharel
  • · Replies 4 ·
Replies
4

Undergrad Do fields created by magnets add up?

  • SMD1990
  • · Replies 7 ·
Replies
7

Undergrad Re: How frequency is affected in a metal rod

  • Mike Anderson
  • · Replies 1 ·
Replies
1

Graduate Potential of Infinite Charge Distribution by First Principle

  • aim1732
  • · Replies 2 ·
Replies
2

Undergrad Doubt in Ammeter: Shunt Resistor or Inductance?

  • snb
  • · Replies 1 ·
Replies
1

Undergrad What is Q in kQq/r? (+Ze) Explained

  • kenshi64
  • · Replies 3 ·
Replies
3

Undergrad What is 'K' in K=1/4pi Epsilon 0?

  • kenshi64
  • · Replies 1 ·
Replies
1

Graduate Electrodynamics thought experiment

  • soothsayer
  • · Replies 4 ·
Replies
4

Undergrad Relationship between Voltage and Current

  • Mastaan
  • · Replies 5 ·
Replies
5

High School What does electricity & magnetism travel through

  • taybot
  • · Replies 21 ·
Replies
21

Graduate What is the electrodynamic action and its energy-momentum tensor?

  • juanrga
  • · Replies 2 ·
Replies
2

Undergrad Uniform electrical field - why?

  • Nikitin
  • · Replies 2 ·
Replies
2

Parking System Uses Solar Power to Charge Electric Vehicles

  • jobsense1
  • · Replies 3 ·
Replies
3

Graduate Does an analogue kWh meter over charge for harmonic distortions?

  • kouty
  • · Replies 1 ·
Replies
1

Undergrad Why Do High Energy Discharges Arc?

  • peter.ell
  • · Replies 2 ·
Replies
2

Undergrad X-ray tube Questions - Accelerating electrons, Why X-rays

  • nousername
  • · Replies 4 ·
Replies
4

Undergrad ? about magnifying lens/parabolic mirrors steam turbine electric generator

  • Newtype
  • · Replies 8 ·
Replies
8

Graduate Trying to understand what happens when EMR goes through matter (or doesn't)

  • mohyla103
  • · Replies 6 ·
Replies
6

Undergrad Time period and natural frequency

  • svishal03
  • · Replies 3 ·
Replies
3

Undergrad How can I calculate eddy currents in a changing magnetic field?

  • mienaikoe
  • · Replies 7 ·
Replies
7

High School Which direction they allow a current to pass in this drawing? This or

  • Femme_physics
  • · Replies 4 ·
Replies
4

Undergrad Projectile Motion with Air Resistance

  • Science Proff
  • · Replies 1 ·
Replies
1

Undergrad Increase voltage = increase in intensity of electrons - X-ray tube

  • nousername
  • · Replies 3 ·
Replies
3

Undergrad How Is EMF Generated in a Coil Flipped in a Magnetic Field?

  • Moh'd Ali MQN
  • · Replies 1 ·
Replies
1

Undergrad Calculating Motor Capacitor Size: What Equation Should I Use?

  • yshtar
  • · Replies 18 ·
Replies
18

Graduate Biot-Savart law and Poisson's equation

  • Mbert
  • · Replies 6 ·
Replies
6

Graduate Solving Maxwell's Equations: A Challenge

  • 101111001101
  • · Replies 6 ·
Replies
6

Graduate Creating a Uniform Magnetic Field for Penning Traps without Electromagnets

  • lamonster
  • · Replies 3 ·
Replies
3

High School Is There a Short Circuit in Your Diagram? How to Spot It!

  • beyondlimits
  • · Replies 3 ·
Replies
3

Undergrad Electrical Energy: Is Kinetic Energy of Electrons Involved?

  • tushar gupta
  • · Replies 8 ·
Replies
8

Undergrad Why Does Charge Flow to Outer Spherical Shell?

  • Highwaydude
  • · Replies 2 ·
Replies
2

Graduate Free Charges in a Dielectric Sphere

  • *FaerieLight*
  • · Replies 2 ·
Replies
2

High School Realizing AND & NOR Gates w/ Diodes: An Explanation

  • aman kapoor
  • · Replies 1 ·
Replies
1

Undergrad Question regarding parallel plate capacitor

  • arunbhaskar
  • · Replies 6 ·
Replies
6

High School Solving Circuits: EMF 12V, Internal Resistance 5Ω

  • kenshi64
  • · Replies 6 ·
Replies
6

Undergrad Photoelectric effect and what happens to the electron

  • MarkFarrell82
  • · Replies 13 ·
Replies
13

High School How do lead batteries (rechargeable) supply both AC and DC power?

  • khurram usman
  • · Replies 5 ·
Replies
5

Undergrad What comes first in a closec circuit eletron movement or the electic feild.

  • Mission
  • · Replies 2 ·
Replies
2

Undergrad Electricfield of a Disk using Gauss's law

  • perplexabot
  • · Replies 8 ·
Replies
8

Undergrad Making Bar Magnets: Heating & B Field Placement

  • cragar
  • · Replies 9 ·
Replies
9

Undergrad What is Coulomb potential and energy?

  • quietrain
  • · Replies 6 ·
Replies
6

High School Net Resistance of Parallel Circuits: Solve It Now!

  • kllindsey
  • · Replies 4 ·
Replies
4

Undergrad A magnet that won't stop spinning?

  • ARAVIND113122
  • · Replies 15 ·
Replies
15

Graduate Discharging a capacitor - the Van Allen radiation belt

  • DrClapeyron
  • · Replies 1 ·
Replies
1

Undergrad Why does my microphone hum change when I touch different objects?

  • fawk3s
  • · Replies 4 ·
Replies
4

Graduate Relationship between remanence (B_r) and Magnetization (M)

  • sgsawant
  • · Replies 1 ·
Replies
1

High School How fast would an electric motor spin in space?

  • tackyattack
  • · Replies 8 ·
Replies
8

Graduate Joule Watt second = How many Plank?

  • dharma12001
  • · Replies 6 ·
Replies
6

Undergrad Voltages in RLC Circuits: Explained

  • vrc
  • · Replies 5 ·
Replies
5

Undergrad What does the energy of an electrostatic field mean?

  • BrunoIdeas
  • · Replies 1 ·
Replies
1

Undergrad Acceleration of electron in hydrogen atom

  • ocohen
  • · Replies 2 ·
Replies
2

Graduate Why is Electrical Potential Energy Dimensionally Inconsistent?

  • skp524
  • · Replies 1 ·
Replies
1

Graduate Is There Any Significant Difference Between Gravitational and Coulomb Forces?

  • formal
  • · Replies 8 ·
Replies
8

Undergrad Testing E & B Fields: Is This the Only Way?

  • cragar
  • · Replies 2 ·
Replies
2