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Undergrad Finding out internal resistance of a lemon when used as a power supply

  • Dearster
  • · Replies 2 ·
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2

Undergrad Are E and B Fields Always Perpendicular?

  • Valayar
  • · Replies 1 ·
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1

Undergrad DC to AC oscilator and transformer

  • itsjustme
  • · Replies 1 ·
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1

Undergrad Voltage - Sign convention problems

  • Rib5
  • · Replies 6 ·
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6

Undergrad Why is electric pulse attenuation measured in dB using natural logarithms?

  • Efthimios
  • · Replies 13 ·
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13

Undergrad How does a tank circuit work in a radio?

  • A.I.
  • · Replies 2 ·
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2

Graduate Infinitely Long Magnet: Effects on Stationary Charged Particle

  • tomprice
  • · Replies 5 ·
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5

Graduate Non-Ideal Lorentzians: Quantifying Shape Deviation from Ideal

  • f95toli
  • · Replies 0 ·
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0

Undergrad How Fast Does a Magnetic Field Propagate?

  • mordechai9
  • · Replies 4 ·
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4

Graduate Electrons qualifying as dark matter?

  • patrickwilson
  • · Replies 3 ·
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3

Undergrad Photoelectric Effect: Is There a Problem?

  • hongkongrubbish
  • · Replies 1 ·
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1

High School What is the definition of electricity?

  • abhaiitg
  • · Replies 1 ·
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1

Undergrad Could a DC Motor Work with Only Two Sides of Copper in the Magnetic Field?

  • Brock
  • · Replies 6 ·
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6

Graduate Create Uniformly Charged Cylindrical Shell w/ Quickfield

  • Identitygiora
  • · Replies 1 ·
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1

Graduate Poisson's equation and Green's functions

  • jmb
  • · Replies 10 ·
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10

High School Why is sunlight considered electromagnetic radiation?

  • bizarre
  • · Replies 3 ·
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3

Graduate Lorentz Invariance and Non-Galilean Invariance of Maxwell's Equations

  • Dahaka14
  • · Replies 4 ·
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4

Graduate Perfect Diamagnetism: Properties Necessary for Ideal State

  • cesiumfrog
  • · Replies 5 ·
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5

Undergrad Are Gauss's Law and Coulomb's Law Equivalent?

  • Enjolras1789
  • · Replies 2 ·
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2

Undergrad Coulombic charge of a battery pole

  • walt
  • · Replies 7 ·
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7

Undergrad Making an insulator become a conductor?

  • mino206
  • · Replies 3 ·
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3

Graduate Does Gauss' Law Hold for Infinite Gaussian Surfaces?

  • Ahmes
  • · Replies 1 ·
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1

Graduate Surface Integral: Right Side = Left Side?

  • pardesi
  • · Replies 3 ·
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3

Graduate What makes Faraday's Law different from other fundamental forces?

  • radiogaga35
  • · Replies 5 ·
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5

Undergrad Question Regarding electric field

  • harishjee.com
  • · Replies 5 ·
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5

High School How can I measure electric field strength for my coursework extension?

  • jaderberg
  • · Replies 5 ·
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5

High School Is Electric Charge a Physical Entity Like Mass?

  • rondi
  • · Replies 3 ·
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3

Graduate Square Loop Current: Vector Potential Zero w/ 2 Sides

  • shehab
  • · Replies 2 ·
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2

Graduate Induced Electric Fields in Changing Magnetic Fields: Equations and Applications

  • pardesi
  • · Replies 7 ·
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7

Undergrad Magnetic Field Inside Cylindrical Conductor

  • pardesi
  • · Replies 1 ·
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1

Graduate Why Is the Magnetic Vector Potential Azimuthal Inside an Infinite Solenoid?

  • pardesi
  • · Replies 1 ·
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1

Graduate What Determines the Torque and Magnetic Moment in Magnetic Systems?

  • pardesi
  • · Replies 1 ·
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1

Undergrad Why do magnetic fields follow the right-hand rule instead of the left-hand rule?

  • Hymne
  • · Replies 2 ·
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2

Undergrad Electrolysis for Generating Hydrogen: Best Conductor?

  • supermancody
  • · Replies 1 ·
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1

Graduate What is the formula for the mass of an electron without any other particles?

  • Soshnikov_Serg
  • · Replies 1 ·
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1

Undergrad Time-integral of a voltage function?

  • Dan Kanak
  • · Replies 3 ·
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3

Graduate What are the components in flux equations?

  • nabla_foo
  • · Replies 3 ·
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3

High School Solar Panel to Recharge Hybrid batteries?

  • mitchjdm
  • · Replies 1 ·
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1

Graduate How do coefficients of capacitance relate to charging by induction?

  • psholtz
  • · Replies 4 ·
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4

High School Is Earth Positively or Negatively Charged?

  • spideyinspace
  • · Replies 1 ·
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1

Graduate Fringe Field of an asymmetrical parallel capacitor

  • smartmac
  • · Replies 6 ·
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6

Undergrad Will 4 sides FARADAY CAGE work?

  • piriya
  • · Replies 5 ·
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5

Undergrad Solved: Faraday Cage Problem - No Electric Charge on Man

  • katchum
  • · Replies 9 ·
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9

Undergrad Radioisotope thermoelectric generator

  • bill nye scienceguy!
  • · Replies 2 ·
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2

Undergrad Vacuum Tube Diode Explained: Electron Boiling

  • pardesi
  • · Replies 4 ·
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4

High School Electromagetic movement of water

  • voltronforce
  • · Replies 5 ·
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5

Graduate How do magnetic flux lines behave around external defects in steel structures?

  • Aaron1978
  • · Replies 6 ·
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6

Undergrad Question on electrical induction

  • micke_s
  • · Replies 1 ·
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1

Undergrad Electric Grounding: What Does it Mean?

  • harshant
  • · Replies 5 ·
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5

High School Wieght of discharged electronic capacitor or battery

  • Impulse2
  • · Replies 5 ·
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5

Graduate Magnetic field effect on gas particles

  • yashar_g
  • · Replies 2 ·
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2

Graduate What is the difference between voltage across an inductor and back emf?

  • cepheid
  • · Replies 7 ·
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7

Graduate Continuity of the first Maxwell equation.

  • Bert
  • · Replies 2 ·
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2

Undergrad How does Faraday's Law apply to changing magnetic flux?

  • Winzer
  • · Replies 5 ·
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5

Undergrad Excite a Circuit: Wheatstone Bridge Strain Gage Application

  • ghostdog
  • · Replies 1 ·
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1

Graduate Sinusodial solution of EM equation

  • pardesi
  • · Replies 7 ·
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7

Graduate Non-parallel plate capacitance

  • ianmc7
  • · Replies 1 ·
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1

Graduate What Is the Real-Time Form of the Incident Electric Field in a Plane Wave?

  • Ayame17
  • · Replies 3 ·
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3

Graduate Electric field of an infinite carged wire in a conductive medium

  • fiz65
  • · Replies 2 ·
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2

High School Help Me Measure Capacitance with ASL MODEL 1055

  • BerryBoy
  • · Replies 4 ·
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4

Graduate Limitation of metallic sharpness from local electric field

  • Loren Booda
  • · Replies 2 ·
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2

Graduate What are the names of these formulas in EM

  • sokratesla
  • · Replies 8 ·
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8

Undergrad Understanding Alternating Current Supply in Households

  • kiamzattu
  • · Replies 1 ·
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1

High School Who Discovered Coulomb's Law and the Concept of Electric Field Lines?

  • pmb_phy
  • · Replies 1 ·
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1

Undergrad Electric field of charged infinite line and plane

  • Angelos
  • · Replies 1 ·
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1

Graduate Strange electric-optical unit (a.u.)

  • Micko
  • · Replies 2 ·
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2

Graduate Electric field with constant direction

  • Grieverheart
  • · Replies 1 ·
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1

Undergrad Reduce magnetic radition from motors

  • FatMooseHenry
  • · Replies 2 ·
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2

Undergrad Capacitance: How to get 50 microF w/ 80.0 microF

  • Z COOL
  • · Replies 1 ·
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1

Undergrad Does peltier effect account for lose of voltage of the cell?

  • Ahmed Abdullah
  • · Replies 3 ·
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3

Graduate Frequency Existence: Does Matter Pop In/Out?

  • pallidin
  • · Replies 2 ·
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2

Undergrad What Happens to Electrons in a Long Wire with Rapid Voltage Changes?

  • dashkin111
  • · Replies 6 ·
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6

High School Find Simple Circuit Schematics and Build Instructions

  • Marghk
  • · Replies 3 ·
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3

Undergrad Two Conducting Spheres Connected

  • LikwidN2
  • · Replies 5 ·
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5

Undergrad Something interesting about magnets and weighing scales

  • dfx
  • · Replies 1 ·
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1

Graduate A quick question about current loops

  • a9211l
  • · Replies 2 ·
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2

High School Long straight wire/ magnetic field

  • flame_m13
  • · Replies 2 ·
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2

Undergrad Magnet is used to levitate another magnet

  • arul_k
  • · Replies 7 ·
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7

Graduate Definition of electric polarization

  • Manchot
  • · Replies 2 ·
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2

Undergrad Why does adding a dielectric increase the energy of a capacitor?

  • alexio
  • · Replies 1 ·
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1

Undergrad Question about capacitor and dielectric

  • alexio
  • · Replies 1 ·
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1

High School What is the Strength of Earth's Magnetic Field and How Can It Be Measured?

  • thick0122
  • · Replies 2 ·
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2

Graduate A paradox in electromagnetic theory

  • lugita15
  • · Replies 56 ·
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56

Graduate How did Millikan show the electron charge to be quantized?

  • Signifier
  • · Replies 4 ·
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4

Graduate Biot-Savart + Coulomb + Charge Conservation = Maxwell?

  • Swapnil
  • · Replies 8 ·
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8

Undergrad Convert Watts to Kelvins on Steel Plate: 850 Sunlight Spots

  • douglasg14b
  • · Replies 1 ·
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1

Graduate Is Simulating Electron Energy Drops Possible?

  • Rahmuss
  • · Replies 10 ·
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10

Undergrad Understanding Magnetic Flux and Density: Relationship and Comparison

  • Mr_Bojingles
  • · Replies 1 ·
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1

Undergrad Magnetic Forces: Calculating Force on Uncharged Bodies

  • emmkayy41
  • · Replies 4 ·
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4

Undergrad Measuring Alternating current/voltage

  • alchemist
  • · Replies 14 ·
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14

Undergrad Net Flux due to charge on surface

  • qz27
  • · Replies 2 ·
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2

Undergrad Can an insulator affect the electric field of a charged particle?

  • qz27
  • · Replies 5 ·
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5

Graduate Zero divergence in an enclosed point charge

  • Headbanger
  • · Replies 9 ·
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9

Undergrad Force of Repulsion Between Magnets in a Magnetic Field - Equation & Variables

  • letueros
  • · Replies 2 ·
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2

Graduate Green's Fucntions in Cylindrical coordinates

  • pfknapp
  • · Replies 1 ·
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1

High School Photoelectric Effect and metals

  • Einstein
  • · Replies 21 ·
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21

Undergrad Which Magnetic Pole Exerts More Force on Electrons?

  • vasko
  • · Replies 3 ·
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3

Undergrad Magnetic Saturation in Solenoids: Core Size & Shape Impact?

  • celeramo
  • · Replies 1 ·
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1

High School Difference in capacitor configuration

  • IHateMayonnaise
  • · Replies 4 ·
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4

Graduate Lagrangian for a charged particle in a magnetic field

  • mmcf
  • · Replies 3 ·
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3