Electromagnetism Forum

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Graduate Variation in electrical lines of forces with intensity.

  • dE_logics
  • · Replies 5 ·
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5

Undergrad Potential Across Two 50k Ohms Resistors in Open Circuit

  • dE_logics
  • · Replies 3 ·
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3

Undergrad Can Adding More Junctions Increase Thermoelectricity Production?

  • matthewgill
  • · Replies 3 ·
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3

Undergrad Newbie question - Magnetic fields vs Rolex

  • funkstardelux
  • · Replies 4 ·
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4

High School Confused(HUGE misunderstanding) about potentiometer (HS physics)

  • qazxsw11111
  • · Replies 5 ·
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5

Undergrad Photoelectric effect+frequencies

  • hurricane89
  • · Replies 4 ·
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4

High School Is it possible to break a circuit electronically?

  • U4edot
  • · Replies 5 ·
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5

Undergrad Electric Field of an Electromagnetic Wave

  • enridp
  • · Replies 3 ·
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3

Undergrad Transformer with wire running through as secondary

  • stephen163
  • · Replies 1 ·
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1

Graduate Can Magnetic Flux Induce EMF in Transformer Without Shearing Winding Conductors?

  • b.shahvir
  • · Replies 3 ·
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3

Undergrad Confused about the cause of Magnetism

  • Fr33Fa11
  • · Replies 7 ·
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7

Undergrad Why does ElectroMagnetic radiation propagate forever?

  • imiyakawa
  • · Replies 4 ·
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4

Undergrad Dipole in an Uniform Electric Field:

  • fallen186
  • · Replies 1 ·
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1

Graduate Is Special Relativity Consistent with Classical Electromagnetism and Mechanics?

  • snoopies622
  • · Replies 7 ·
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7

Graduate Maxwell's Equations: Find Magnetic Field from Curl

  • Savant13
  • · Replies 16 ·
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16

Graduate Calculate Electrical Resistance for Material of Any Geometry

  • uq_civediv
  • · Replies 2 ·
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2

Undergrad Photoelectric effect question

  • hurricane89
  • · Replies 5 ·
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5

High School How Do Voltage and Current Interact in an Electrical Circuit?

  • Rudders
  • · Replies 5 ·
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5

Undergrad Why don't radio stations interfere with each others broadcasts?

  • mahela007
  • · Replies 23 ·
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23

High School How increased treble affects the graph of amplitude versus frequency

  • liquid8vortex
  • · Replies 1 ·
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1

Undergrad How to change the charging time (battery)

  • quuker
  • · Replies 4 ·
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4

Undergrad How does a DC current polarize

  • jsmith613
  • · Replies 1 ·
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1

Graduate Gibbs vs Helmoltz potential in magnetic systems

  • FranzDiCoccio
  • · Replies 6 ·
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6

Graduate How does polarisation of EM wave work?

  • serverxeon
  • · Replies 2 ·
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2

Undergrad Electromagnets and conservation of energy

  • abccbaabc014
  • · Replies 1 ·
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1

High School How does electricity power devices?

  • Kelju Ivan
  • · Replies 6 ·
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6

Graduate Electromagnetic Momentum and Energy

  • quantoshake11
  • · Replies 5 ·
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5

Graduate Feynman's apparent paradox - Electromagnetism

  • Shan Ravi
  • · Replies 3 ·
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3

Undergrad Distribution of charge within a CONDUCTOR

  • O.J.
  • · Replies 8 ·
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8

Undergrad Is colour dependent on wavelength of frequency?

  • serverxeon
  • · Replies 19 ·
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19

Graduate Does Faraday's Law Account for Varying Induced Flux in a Loop?

  • kobulingam
  • · Replies 8 ·
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8

High School Watts=Newton-meters per second

  • Celestiela
  • · Replies 2 ·
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2

Undergrad How Can I Derive the Biot-Savart Law?

  • kipper
  • · Replies 6 ·
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6

Graduate Magnetic Cooling: Effects of External Field

  • orthovector
  • · Replies 3 ·
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3

Undergrad What kind of physical force does the earth's magnetic field exert on any object?

  • Scidhuv
  • · Replies 2 ·
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2

High School Why Do Compass Needles Point Differently When Placed Close Together?

  • Lasand
  • · Replies 9 ·
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9

Undergrad Electromagnetic waves of transmitters

  • Niles
  • · Replies 13 ·
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13

Graduate Maxwell's equations for electricity and magnetism

  • Charlie G
  • · Replies 7 ·
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7

Graduate Deriving Maxwell's Equations: Primitive Assumptions Explained

  • chaotixmonjuish
  • · Replies 3 ·
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3

Graduate Green identity, poisson equation.

  • Thaakisfox
  • · Replies 10 ·
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10

Graduate The commercial toy, Levitron, can achieve stable magnetic levitation

  • Harmony
  • · Replies 4 ·
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4

Graduate Relationship between electricity and magnetism

  • potmobius
  • · Replies 10 ·
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10

Undergrad Causal signal is defined in electrical eng.

  • krindik
  • · Replies 5 ·
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5

Graduate Finding Closed Surfaces for Point Charge at Origin

  • august_2007
  • · Replies 1 ·
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1

Graduate Is the Photoelectric Effect an Ideal Heat Sink for Photovoltaic Cells?

  • Smacal1072
  • · Replies 14 ·
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14

Undergrad Do Gravitational Field Lines Exist Similar to Magnetic and Electric Field Lines?

  • zd1899
  • · Replies 4 ·
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4

Graduate Electromagnetic plane waves in vacuo

  • madness
  • · Replies 3 ·
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3

Undergrad Exercise bike that produces electricity

  • fellupahill
  • · Replies 3 ·
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3

Graduate Solving N-dipole Problem in the Heart: How to Calculate Potential Fields

  • Carl140
  • · Replies 1 ·
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1

Undergrad Doubt regarding Force exerted by a magnetic field on a moving charge

  • ApuroopS
  • · Replies 2 ·
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2

Graduate What are the properties and differences between electric and magnetic fields?

  • kashiark
  • · Replies 10 ·
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10

Graduate Derivation for Magnetic Field Due to Dipole

  • boderam
  • · Replies 1 ·
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1

High School Metal hair brush to reduce static electricity

  • Nothing000
  • · Replies 10 ·
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10

Undergrad What is the formula for electrical power in a DC circuit?

  • ximath
  • · Replies 1 ·
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1

Undergrad Cold air vs hot air in turbochargers

  • darkdrifter04
  • · Replies 10 ·
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10

Graduate Shileding of a point charge by an infinite conducting plane

  • lormanti
  • · Replies 10 ·
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10

Undergrad Fully understanding a capacitor circuit

  • mklein
  • · Replies 3 ·
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3

Undergrad Voltage without knowing current

  • elimenohpee
  • · Replies 4 ·
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4

Graduate Can Magnets Bend Light for Invisibility Cloaks?

  • Charlie G
  • · Replies 36 ·
2
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36

Graduate Charge Separation: Effects of Electric Field Intensity

  • dE_logics
  • · Replies 3 ·
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3

Graduate How Is Electrical Permittivity Defined Mathematically Without Using Curls?

  • dE_logics
  • · Replies 6 ·
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6

High School Several electromagnet questions

  • 6fthook
  • · Replies 2 ·
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2

Undergrad Electromagnetic Energy: Existence, Measurability & More

  • satelliteguy
  • · Replies 9 ·
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9

Undergrad Is Electric Flux Equal to q Coulombs or Determined by Field Lines?

  • dE_logics
  • · Replies 2 ·
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2

High School What Is Acoustic Length in Musical Instruments?

  • beaverflutes
  • · Replies 1 ·
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1

Undergrad Electricity in humid vs. dry air?

  • canuck111
  • · Replies 1 ·
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1

Undergrad Why needs plate capacitor high voltage

  • Ulrich
  • · Replies 11 ·
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11

High School What Are the Basics of Magnetism and Its Mysteries?

  • Questioner...
  • · Replies 1 ·
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1

Undergrad Is there a location on Earth free of all electromagnetic radiation?

  • LE0
  • · Replies 10 ·
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10

Undergrad Effect of water flow on electrical resistance

  • mikeyb555
  • · Replies 1 ·
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1

High School Why do the Earth's magnetic poles switch every once in a while?

  • Archosaur
  • · Replies 3 ·
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3

High School Question about Current and Resistance

  • BuddyGoodness
  • · Replies 7 ·
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7

High School Can Radio Waves Be Converted to Electric Signals?

  • tejabhiram
  • · Replies 12 ·
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12

Undergrad Electromagnetic waves and helicopters

  • ShayanJ
  • · Replies 3 ·
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3

Graduate Photoelectric effect violating entropy?

  • Smacal1072
  • · Replies 3 ·
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3

High School What causes the humming sound in transformers?

  • woollymac
  • · Replies 2 ·
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2

Undergrad Where does the energy go when charges are shared between capacitors?

  • saltine
  • · Replies 15 ·
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15

Undergrad UK mains electricity & current reversals

  • woollymac
  • · Replies 2 ·
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2

High School Good information on magnets, magnetic energy, magnetic forces

  • satelliteguy
  • · Replies 3 ·
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3

Undergrad Understanding Frequency in a Wire: Electron Behavior

  • xk4r
  • · Replies 3 ·
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3

Graduate Sinusoidal voltage applied to zero resistance conductor

  • b.shahvir
  • · Replies 32 ·
2
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32

Graduate Can you point out physical interpretation of the complex permittivity?

  • krindik
  • · Replies 3 ·
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3

High School Jumping cookie crumb, static charge?

  • Spinnor
  • · Replies 18 ·
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18

Undergrad Does the size of a test charge affect the overall force in a charged field?

  • dE_logics
  • · Replies 11 ·
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11

Graduate Magnetic fields across lines and surfaces

  • IniquiTrance
  • · Replies 3 ·
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3

Graduate Mutual Inductance in a circuit

  • ber70
  • · Replies 2 ·
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2

Undergrad Electric field inside a conductor

  • Count Iblis
  • · Replies 37 ·
2
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37

Graduate Noether's Theorem and the associated Noether Charge

  • Kooklin
  • · Replies 3 ·
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3

Undergrad How Does Maxwell's Demon Relate to Entropy and Gas Separation?

  • fluidistic
  • · Replies 2 ·
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2

Graduate Can magnetic field expand faster than light?

  • Tominator
  • · Replies 106 ·
4
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106

Graduate [Ray tracing] Resultant of electric field components

  • whitenight541
  • · Replies 5 ·
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5

High School If you cut a magnet in two, why do you get two magnets?

  • VelocityGirl
  • · Replies 4 ·
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4

High School How do I contain a magnet's magnetic field?

  • Magnetism
  • · Replies 6 ·
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6

High School Can the Human Body Create EM Fields to Affect Electronics?

  • _Adam_
  • · Replies 1 ·
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1

High School Designing High School Lenz's Law Experiment

  • qasabah
  • · Replies 2 ·
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2

Undergrad Fundamental reasoning:Electromagnetic Wave - Visible Light

  • madhushala
  • · Replies 6 ·
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6

Graduate Is electromagnetic wave theory correct?

  • Nickelodeon
  • · Replies 22 ·
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22

Undergrad Electrifying a permanent magnet

  • fadecomic
  • · Replies 1 ·
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1

Graduate Electromagnetic Waves and Fields

  • jmsmith
  • · Replies 5 ·
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5

Graduate Why can't a photon transfer all its energy to a free electron?

  • ajl1989
  • · Replies 4 ·
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4