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Undergrad Static Electricity -- How best to generate it and use it?

  • TheGolferman
  • · Replies 29 ·
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29

High School Understanding Flux: The Measure of Field Lines Passing Through a Surface

  • rudransh verma
  • · Replies 35 ·
2
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35

High School Different formulas for electric flux

  • Alex Schaller
  • · Replies 10 ·
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10

Undergrad Building a Linear Induction Motor | Tips & Tricks

  • Flash27
  • · Replies 16 ·
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16

High School Resistance Between Two Small Conducting Spheres

  • ergospherical
  • · Replies 4 ·
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4

High School Can anyone tell me the name of this device?

  • Flash27
  • · Replies 8 ·
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8

Undergrad Could Iron Filings Form Rings Around a Magnetized Sphere in Space?

  • James William Hall
  • · Replies 24 ·
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24

Undergrad Investigating the 1d Equation: Charges & Field Disparity

  • Noki Lee
  • · Replies 4 ·
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4

Undergrad Will 2 magnets lose energy while repelling each other?

  • IATF
  • · Replies 22 ·
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22

Undergrad How can we prove that the capacitance does not depend on charge?

  • jaumzaum
  • · Replies 16 ·
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16

High School Why Are Electric Fields Perpendicular on a Charged Conductor's Surface?

  • rudransh verma
  • · Replies 15 ·
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15

High School Conservation of energy and magnetism

  • cwy2012
  • · Replies 11 ·
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11

Undergrad Work Done in Changing Shape of Current Carrying Loop

  • Anmoldeep
  • · Replies 5 ·
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5

Undergrad Calculating Magnetic field strength of a magnet

  • Einstein44
  • · Replies 198 ·
7
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198

Undergrad Confusion with the direction of E-fields near conductors

  • rudransh verma
  • · Replies 35 ·
2
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35

High School Coupling Magnetic Fields: Does Orientation Change Strength?

  • RichFoster
  • · Replies 9 ·
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9

Graduate Image Method for B-Field Calculation on Iron Plate

  • glj6
  • · Replies 2 ·
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2

High School Tangential part of the potential electric field

  • FrankygoestoHD
  • · Replies 2 ·
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2

High School Voltage between the positive terminal of a battery and a point in the air

  • versine
  • · Replies 5 ·
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5

Undergrad What is the cause of electrical disturbances?

  • rudransh verma
  • · Replies 24 ·
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24

High School Can EM Radiations Exist without a Source?

  • Rev. Cheeseman
  • · Replies 53 ·
2
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53

Undergrad How a Battery creates a Potential difference in an electrical current

  • The Tortoise-Man
  • · Replies 14 ·
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14

Undergrad Energetic argument for the tension in a current loop

  • pop_ianosd
  • · Replies 8 ·
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8

Undergrad Another way of stating Gauss' law?

  • rudransh verma
  • · Replies 83 ·
3
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83

Undergrad Confusion over applying the 1st uniqueness theorem to charged regions

  • phantomvommand
  • · Replies 1 ·
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1

Undergrad What is Electric Flux and How is it Calculated?

  • rudransh verma
  • · Replies 30 ·
2
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30

Undergrad How are the Maxwell's Electromagnetism equations traceless?

  • swampwiz
  • · Replies 8 ·
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8

High School Problems regarding electrostatic forces in everyday levitation

  • jackiepollock
  • · Replies 1 ·
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1

Undergrad An Alternative explanation for energy loss due to Eddy currents

  • phantomvommand
  • · Replies 2 ·
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2

High School Do contracting muscles emit electric fields?

  • jaketodd
  • · Replies 5 ·
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5

High School Why do moving charged particles feel a force in a magnetic field?

  • nicobzz
  • · Replies 23 ·
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23

Undergrad Preventing parasitics for wires?

  • Cup of Joe
  • · Replies 4 ·
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4

Undergrad Relationship among Intensity, Frequency, and Current

  • Aldnoahz
  • · Replies 23 ·
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23

High School Question regarding Beta-voltaic cells and their efficiency

  • andrew_bak
  • · Replies 4 ·
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4

Undergrad What's the electric potential of the Earth?

  • jaumzaum
  • · Replies 13 ·
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13

Undergrad Free electrons in an accelerated metal?

  • M de L
  • · Replies 11 ·
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11

Undergrad How is Potential Difference Created in Electrolytes?

  • Dario56
  • · Replies 10 ·
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10

Undergrad Calculate Diameter of Quad Coil Array for Speed of Light Rotation

  • Fluxation
  • · Replies 32 ·
2
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32

Undergrad Are Cathode Rays Curved by Anode Fields?

  • pkc111
  • · Replies 10 ·
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10

Undergrad Moving charges in electrostatics

  • Physicslad00
  • · Replies 14 ·
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14

Undergrad Can Electromagnetic Fields Exist Independently of Charges?

  • sergiokapone
  • · Replies 21 ·
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21

Undergrad A problem when trying to compare electromagnetism with gravity

  • Myslius
  • · Replies 2 ·
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2

High School The resistance of an ohmic conductor

  • Viona
  • · Replies 4 ·
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4

Undergrad Why is initial current zero in an RL circuit with an emf?

  • Fernando Rios
  • · Replies 5 ·
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5

High School Distribution of energy in the electric field surrounding an electron

  • Herbascious J
  • · Replies 2 ·
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2

Undergrad Why Doesn't Electric Force Cause Wires to Move?

  • Viona
  • · Replies 15 ·
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15

Undergrad Waveform of Classic Electromagnetic Induction

  • b.shahvir
  • · Replies 222 ·
8
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Graduate Electrostatic energy in finite space

  • feynman1
  • · Replies 14 ·
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14

Graduate Inductance of Parallel Coils on an uncut toroid magnetic core

  • dilectron
  • · Replies 13 ·
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13

Undergrad Why does a magnet do work on a flying nail?

  • alyssmainwrg
  • · Replies 2 ·
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2

Graduate Force on a charge centered around a rotating magnet

  • hemalpansuriya
  • · Replies 16 ·
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16

High School Why do we use Bohr's model of the atom in electrostatics?

  • Magnetons
  • · Replies 9 ·
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9

High School Magnet repulsive force -- how long does it last?

  • cel123456
  • · Replies 43 ·
2
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43

Graduate Is Current in Superconductors Truly Infinite?

  • Rakib771
  • · Replies 9 ·
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9

High School RC Low Pass Circuit Sine Wave Response

  • jaydnul
  • · Replies 7 ·
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7

Undergrad Is it Possible to Create a Large but Low-Powered Electromagnet?

  • MarcelloP
  • · Replies 13 ·
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13

Undergrad Extracting an electric grounding spike

  • Paul Colby
  • · Replies 9 ·
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9

Graduate Polarization of EM waves is preserved after reflection/refraction -- Why?

  • xxxyyy
  • · Replies 10 ·
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10

Undergrad "Barlow's wheel" used as an electrical generator

  • Ale_Rodo
  • · Replies 7 ·
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7

Graduate Where are the pressure nodes on a standing acoustic wave in water?

  • bubble-flow
  • · Replies 7 ·
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7

Graduate Proper Lorentz transformations from group theory?

  • xxxyyy
  • · Replies 2 ·
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2

Graduate EM wave/radiation from which equations?

  • xxxyyy
  • · Replies 3 ·
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3

Undergrad Why is the energy of a circuit in a magnetic field at infinity zero?

  • qh4305
  • · Replies 7 ·
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7

Undergrad How can there be neodymium magnets when neodymium is paramagnetic?

  • abdossamad2003
  • · Replies 2 ·
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2

Graduate The back way for deriving Maxwell's Equations: from charge conservation?

  • timeant
  • · Replies 13 ·
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13

Undergrad Calculating Electromagnetic Wave Intensity in a 30 sq m Room

  • practicaleducator
  • · Replies 3 ·
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3

Graduate How closely do the magnetic fields generated by geodynamos align?

  • Hornbein
  • · Replies 2 ·
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2

Undergrad Unveiling the Proof of Induced EMF Formula: E = ∫ (v x B) · dl

  • phantomvommand
  • · Replies 4 ·
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4

High School Plasma Experiment Involving Magnetic Fields

  • Shreya
  • · Replies 9 ·
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9

Undergrad Why is an iron cover needed for a solenoid?

  • yaxlei
  • · Replies 4 ·
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4

High School Is My Magnet's Behavior Influenced by the Metal Plate?

  • neodymium
  • · Replies 1 ·
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1

High School Electrons in Electric Fields: Examining Changes

  • Magnetons
  • · Replies 4 ·
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4

Graduate Lorentz force acting upon an electron moving in a circle

  • Ale_Rodo
  • · Replies 14 ·
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14

Graduate Maxwell Equations, Lorentz Force and Coulumb Force

  • latot
  • · Replies 2 ·
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2

Undergrad How to find electromagnetic force between nucleus and electron?

  • Rakib771
  • · Replies 4 ·
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4

Undergrad How does the strength of an electric field relate to its direction?

  • samcoelho
  • · Replies 2 ·
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2

High School How Do Electromagnetic Waves Propagate in Space?

  • gepdiana
  • · Replies 8 ·
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8

High School Are silicon iron sheets really necessary for a commercial transformer?

  • Steve Rogers
  • · Replies 8 ·
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8

Graduate Hamiltonian for a charged particle in a magnetic field

  • zhangnous
  • · Replies 3 ·
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3

Graduate Calculating flux density of radio telescope

  • GhostLoveScore
  • · Replies 28 ·
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28

Graduate Qualitative explanation of Magnetic Braking

  • phantomvommand
  • · Replies 6 ·
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6

Graduate Electromagnetic radiation (EMR) threshold

  • Homestar1
  • · Replies 2 ·
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2

Graduate Levitron and Earnshaw’s theorem.

  • andresB
  • · Replies 1 ·
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1

Graduate What is the "free charge" in Langmuir oscillations for T>0?

  • Twigg
  • · Replies 1 ·
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1

Undergrad Superconductor Flux pinning/Meissner effect with electromagnets?

  • BigDogPhysics
  • · Replies 1 ·
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1

Undergrad If an electron is repelled by another electron how do we get current?

  • SHASHWAT PRATAP SING
  • · Replies 18 ·
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18

Graduate Moving electric field effect on dielectric/gas

  • artis
  • · Replies 1 ·
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1

High School Convection current in electricity

  • StefanDoby
  • · Replies 6 ·
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6

Undergrad Magnetism -- Clarification about North and South magnetic poles

  • keith.gwilym
  • · Replies 15 ·
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15

Undergrad Why don't we use the antiderivative factor for Average Voltage

  • rtareen
  • · Replies 9 ·
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9

Graduate How do metal balls induce stability in a tetrahedral magnet arrangement?

  • gillsimo
  • · Replies 2 ·
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2

Undergrad Checking for negative feedback in a circuit

  • Milotic
  • · Replies 3 ·
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3

Undergrad Some questions about capacitor discharging

  • Milotic
  • · Replies 7 ·
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7

Undergrad Is Coulomb's law valid in a non-inertial frame?

  • xxxyyy
  • · Replies 2 ·
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2

Graduate Electric field acting on the source charge

  • Mayan Fung
  • · Replies 3 ·
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3

High School Bar magnet made from smaller opposing bar magnets

  • mfade
  • · Replies 2 ·
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2

Undergrad Equal Peak Voltages in a Circuit: Is It Always True?

  • Frigus
  • · Replies 38 ·
2
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38

Undergrad Electromagnetic wave equation - phase and amplitude

  • arslan786786
  • · Replies 6 ·
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6

Graduate Induced Electrical Field (Maxwell-Faraday's Law)

  • DirecSa
  • · Replies 4 ·
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4

Graduate Poynting vector and single electron in free space

  • Orthoceras
  • · Replies 8 ·
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8