Electromagnetism Forum

Threads

High School Why the Neutral Wire Causes No Electric Shock

  • Phys988
  • · Replies 16 ·
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16

Undergrad Capacitors,dielectrics and electrostatic forces

  • harshasunder
  • · Replies 2 ·
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2

High School Photoelectric effect (questions)

  • Dav333
  • · Replies 4 ·
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4

Undergrad Magnetic field between two solenoids

  • motornoob101
  • · Replies 2 ·
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2

High School Understanding Wavelength & Frequency: c vs. v

  • Air
  • · Replies 7 ·
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7

Undergrad 5.8Ghz phones, less harmful than 2.4Ghz?

  • Chaos' lil bro Order
  • · Replies 1 ·
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1

High School How do conductors and insulators behave in an electric field?

  • rowkem
  • · Replies 2 ·
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2

Undergrad Understanding Electric Discharges in Gas Tubes: Experiments and Atomic Structure

  • manjuvenamma
  • · Replies 1 ·
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1

Undergrad Magnetic Fields: I don't understand cylindrical current systems

  • Strawberry
  • · Replies 3 ·
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3

Undergrad Why is my Faraday cage not working?

  • Angelos K
  • · Replies 19 ·
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19

Undergrad Exploding Polarized Capacitors - Causes and Mechanisms

  • DaTario
  • · Replies 2 ·
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2

High School Help understanding theory of Charge distribution

  • eps1lon
  • · Replies 4 ·
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4

High School A few questions about Resistance and DC Circuits

  • Feldoh
  • · Replies 4 ·
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4

High School Why do we convert a galvanometer into voltmeter and ammeter?

  • anam89
  • · Replies 4 ·
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4

Undergrad How Do Revolutions Per Second Impact Force in Eddy-Current Speedometers?

  • jamhar89
  • · Replies 2 ·
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2

Undergrad Kinetic Energy -> Electrical Energy

  • wonder_boy
  • · Replies 14 ·
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14

High School Why Don't Metals Get Charged by Friction?

  • manjuvenamma
  • · Replies 4 ·
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4

Undergrad Understanding the Difference Between B and E Fields

  • manjuvenamma
  • · Replies 4 ·
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4

Undergrad What is the Visual Model for Voltage?

  • meemoe_uk
  • · Replies 18 ·
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18

Undergrad Voltage question (photoelectric effect)

  • Physicsissuef
  • · Replies 3 ·
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3

Graduate Electric power transmission - what is different at a particle level?

  • SciencePF
  • · Replies 7 ·
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7

Undergrad Calculating Energy Stored in a Metallic Object in a Magnetic Field

  • rsr_life
  • · Replies 5 ·
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5

Undergrad Electromagnets and Permanent Magnets

  • Klepht
  • · Replies 3 ·
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3

Undergrad Understanding Static Electricity: How Walking on Carpet Creates Voltage

  • zinedine_88
  • · Replies 5 ·
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5

Undergrad Ampere's Law and partial-circular wires.

  • mgrantbaker
  • · Replies 7 ·
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7

Undergrad Question about frequency versus wavelength

  • noospace
  • · Replies 7 ·
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7

High School Can you shape a magnetic field?

  • lahmannrobert
  • · Replies 3 ·
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3

High School How can I improve the functionality of my Zune radio transmitter?

  • DyslexicHobo
  • · Replies 3 ·
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3

Graduate Magnetic field outside a solenoid in 3D in terms of position

  • aravindk87
  • · Replies 1 ·
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1

Undergrad Charged objects and the force between them?

  • manjuvenamma
  • · Replies 2 ·
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2

High School Why only gold in leaf electroscope?

  • manjuvenamma
  • · Replies 2 ·
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2

Undergrad Resistance: An Electrical Density of Materials

  • anonymoussome
  • · Replies 1 ·
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1

High School Why magnetic field deflects a charged particle.?

  • Aladin
  • · Replies 1 ·
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1

High School How Long Can Magnets Maintain Their Properties in a Repelling Magnetic Field?

  • The_Thinker
  • · Replies 1 ·
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1

Graduate Is Magnetic Reconnection a Valid Phenomenon in Astronomy?

  • PlasmaSphere
  • · Replies 11 ·
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11

Undergrad What Is the Potential at the Surface of a Charged Conductor Plate?

  • manjuvenamma
  • · Replies 4 ·
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4

Undergrad Using a magnetometer to compute the magentic moment of a magnet.

  • manjuvenamma
  • · Replies 3 ·
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3

Undergrad What determins the electrical resistivity of different metals?

  • lwymarie
  • · Replies 2 ·
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2

High School Where does the energy in a discharged capacitor go?

  • roeryda
  • · Replies 4 ·
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4

Undergrad Experimental proof of electrostatic equilibrium

  • yoran
  • · Replies 7 ·
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7

Undergrad Component form of magnetic field

  • mgoff87
  • · Replies 2 ·
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2

Graduate Why Can Tight-Binding and DFT Models Assume Electrons are Non-Interacting?

  • Nusc
  • · Replies 1 ·
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1

Undergrad Magnetic field in a particle accelerator

  • mgoff87
  • · Replies 3 ·
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3

High School Why is the Small LED on my Screwdriver Lighting Up?

  • Mephisto
  • · Replies 4 ·
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4

Undergrad Is current a vector or scalar?

  • manjuvenamma
  • · Replies 21 ·
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21

Undergrad Electric charge attraction and repulsion

  • carbrook
  • · Replies 3 ·
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3

High School Why or How an electron REVOLVE around the Atom ?

  • mhd
  • · Replies 14 ·
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14

Unexplained Magnetism: My Strange Experience with Store Alarms

  • DMC CB OD
  • · Replies 8 ·
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8

Graduate What is the correct definition of an electric field from a line of charge?

  • kmeatball
  • · Replies 9 ·
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9

High School Questions about Electrical Field and Magnetic Field

  • shinigami66
  • · Replies 6 ·
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6

Undergrad How does electromagnetic induction work on different types of wire?

  • unseensoul
  • · Replies 22 ·
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22

Undergrad Lighting bulbs with magnetic fields

  • rohanprabhu
  • · Replies 2 ·
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2

Graduate First Time Electron Filmed: What's Going On?

  • MonstersFromTheId
  • · Replies 4 ·
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4

High School How Does Current Flow Create a Magnetic Field Around a Wire?

  • v_pino
  • · Replies 1 ·
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1

Graduate Electrodynamics problem: charge origin?

  • Wiemster
  • · Replies 1 ·
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1

Undergrad Trying to understand Magnetic Braking

  • JonathanS
  • · Replies 4 ·
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4

Undergrad LC Circuit: Initial Conditions and Switch

  • AiRAVATA
  • · Replies 5 ·
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5

Undergrad Does a Negative Charged Conductor Ice Pail Lose Charges When Touched Inside?

  • Volcano
  • · Replies 1 ·
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1

Graduate No Magnetic Fields: Divergence & Curl of B=0

  • jackxx
  • · Replies 3 ·
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3

Graduate Does Gauss' Law Hold for Non-Conservative Electric Fields?

  • miss photon
  • · Replies 5 ·
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5

Undergrad Ampere's swimming rule about magnetic field around a current carrying conductor

  • manjuvenamma
  • · Replies 1 ·
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1

High School What is the relationship between electric force and distance between particles?

  • mooneh
  • · Replies 4 ·
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4

Undergrad How Do You Calculate Electrical Resistance in Complex Geometric Shapes?

  • nrhk
  • · Replies 5 ·
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5

Graduate Unraveling the Mystery of Electric Fields & Atoms

  • david20
  • · Replies 5 ·
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5

Graduate Charges on Faraday ice bucket like conductors

  • Volcano
  • · Replies 1 ·
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1

Graduate Shield Principle Clarified: Inside-Outside Electric Field Independency

  • babblingsia
  • · Replies 5 ·
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5

Undergrad Electric field formula vs coulombs law, contradiction?

  • Kurret
  • · Replies 1 ·
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1

Undergrad Differential Form of Gauss's Law

  • Feldoh
  • · Replies 5 ·
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5

Graduate Wavelength of an Electromagnetic wave

  • rohanprabhu
  • · Replies 4 ·
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4

Undergrad Doesn't Alternating current cause fatigue?

  • rohanprabhu
  • · Replies 5 ·
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5

Undergrad Induction of a coil and force exerted on magnet in a magnetic field

  • Detektyw
  • · Replies 1 ·
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1

High School Create an Electric Device that Lights Up 2 Feet Away | DIY Guide

  • umaga
  • · Replies 2 ·
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2

Undergrad Electrostatic forces and the principle of superposition

  • anam89
  • · Replies 6 ·
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6

High School Electrostatic Experiments: Why Not Work on Humid Days?

  • anam89
  • · Replies 2 ·
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2

Graduate Induction in an inflating loop in constant B?

  • Lojzek
  • · Replies 2 ·
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2

Graduate New intros to Maxwell's Equations, Special and General Relativity

  • Will Flannery
  • · Replies 9 ·
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9

Graduate Trying to understand Electromagnetic waves

  • rohanprabhu
  • · Replies 5 ·
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5

Undergrad What is the potential difference and charge on capacitors connected in series?

  • mer584
  • · Replies 1 ·
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1

High School How to Define Electric Charge?

  • Behrooz
  • · Replies 4 ·
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4

Graduate How does t=1 second relate to the Planck length?

  • yasar1967
  • · Replies 3 ·
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3

High School Understanding Ampere's Law: What Does the Current Enclosed Mean?

  • JasonBourneV
  • · Replies 1 ·
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1

Undergrad Conceptual Question on Current

  • Grapz
  • · Replies 4 ·
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4

Undergrad Make an Electromagnetic Motor: Overcome Short-Circuiting

  • v_pino
  • · Replies 4 ·
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4

High School Understanding Magnetic Flux: Visualization & Beyond

  • v_pino
  • · Replies 1 ·
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1

High School What property of a magnet determines which side of it is N or S?

  • v_pino
  • · Replies 2 ·
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2

High School What frequency is a dog whistle and a tv at?

  • echoSwe
  • · Replies 23 ·
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23

Graduate Dirac Delta function and charge density.

  • calcisforlovers
  • · Replies 1 ·
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1

High School Do the electrons spend energy, and where that energy goes?

  • Physicsissuef
  • · Replies 7 ·
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7

Undergrad Example for Poynting's Theorem

  • shynee
  • · Replies 4 ·
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4

Undergrad Questioning of fundamentals of current flow

  • rohanprabhu
  • · Replies 1 ·
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1

Undergrad Is Sitting on an Electric Wire Harmless for Birds?

  • drpizza
  • · Replies 13 ·
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13

High School Leyden Jar Capacitor Recharging?

  • stringtheory
  • · Replies 14 ·
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14

High School Antenna and Magnet: A Curious Explorer's Tale

  • Imparcticle
  • · Replies 17 ·
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17

Undergrad Minimum wavelength of light and electrons? Microscope related.

  • Energize
  • · Replies 9 ·
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9

Undergrad Magnetic Flux Density: B, \phi, H - True or False?

  • unseensoul
  • · Replies 6 ·
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6

Undergrad Where does the energy come from?

  • philrainey
  • · Replies 4 ·
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4

High School Out of the Loop (no pun intended)

  • Devious Squir
  • · Replies 4 ·
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4

Graduate Slightly philosophical question about magnetism

  • pterid
  • · Replies 2 ·
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2

Electrocuted by household static…?

  • rpellerin87
  • · Replies 7 ·
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7

Undergrad Why does Coulomb's Law have a pi in the denominator while Gauss' Law does not?

  • Old Guy
  • · Replies 1 ·
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1