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Graduate Control strength of permanent magnet

  • athul jyothis
  • · Replies 2 ·
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2

Graduate What causes EMF induced in Faradays law when only B changes

  • Ozgen Eren
  • · Replies 7 ·
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7

Undergrad Faraday's law theoretical question

  • stats_student
  • · Replies 14 ·
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14

High School Is Electric Field ALWAYS measured in N/C?

  • Antonius
  • · Replies 5 ·
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5

Undergrad Can a cylinder block magnetic fields in one direction like a Faraday cage?

  • athul jyothis
  • · Replies 2 ·
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2

Graduate Is There a Connection Between Maxwell's Curl Equations and the Lorentz Force?

  • mairzydoats
  • · Replies 5 ·
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5

High School How does a battery send current through a wire?

  • Abishek Balaji
  • · Replies 10 ·
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10

Undergrad How can the discharge rate of a capacitor be controlled?

  • Hamza Abbasi
  • · Replies 4 ·
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4

Undergrad Force on electron passing through Electric Field (calculate)

  • Blackhawk4560
  • · Replies 9 ·
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9

Graduate Why is the curl of Biot-Savart Law equal to zero?

  • Dorsh
  • · Replies 4 ·
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4

High School Understanding Electron Flow in Direct Current

  • Cash Fulton
  • · Replies 2 ·
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2

Graduate Do EMF Sources Combine Conservative and Non-Conservative Electric Fields?

  • tonyjk
  • · Replies 9 ·
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9

Undergrad Potential Difference and electric shock

  • Elsa1234
  • · Replies 10 ·
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10

Graduate Dipole EM wave field lines VS decreasing amplitude

  • DoobleD
  • · Replies 20 ·
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20

High School Will Electrons Transfer from Body A to Body B?

  • Elsa1234
  • · Replies 9 ·
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9

Undergrad Doubts on properties of electric field lines

  • gracy
  • · Replies 5 ·
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5

Undergrad Rotating Disk in Magnetic Field

  • NewEinstein
  • · Replies 2 ·
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2

Undergrad Calculating Vectors (in Joules) of an electromagnet

  • Blackhawk4560
  • · Replies 6 ·
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6

Undergrad Static electricity and dry cell

  • Elsa1234
  • · Replies 5 ·
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5

Graduate Electro-Magnetic Alcubierre Drive

  • Ontophobe
  • · Replies 15 ·
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15

Graduate Struggling to understand self sustaining EM waves

  • DoobleD
  • · Replies 26 ·
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26

Undergrad Electron between parallel plates

  • member 529879
  • · Replies 15 ·
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15

Undergrad Ionization Enthelpy, Electron Gain Enthelpy and Electron Affinity

  • physics kiddy
  • · Replies 1 ·
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1

Undergrad Does a solenoid's magnetic flux change when a magnet's pole is moved away?

  • Salvador
  • · Replies 3 ·
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3

Graduate Does Chemical Potential Create an Electric Field Inside a Battery?

  • tonyjk
  • · Replies 15 ·
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15

Undergrad How to calculate force from an electromagnet?

  • senox13
  • · Replies 12 ·
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12

High School Electrical current and electrons

  • Elsa1234
  • · Replies 5 ·
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5

Undergrad Distance independence of electric field strength

  • SquidgyGuff
  • · Replies 2 ·
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2

Undergrad Is Voltage Directly or Inversely Proportional to Electricity?

  • Elsa1234
  • · Replies 9 ·
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9

High School A question about the EM spectrum

  • Sundown444
  • · Replies 6 ·
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6

Undergrad Coronal hole and magnetic field

  • ATY
  • · Replies 3 ·
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3

High School Questions about charged objects in isolation

  • teetar
  • · Replies 2 ·
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2

Graduate EM wave near field propagating faster than light?

  • DoobleD
  • · Replies 10 ·
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10

Undergrad Frequency of sound involving bamboo flutes

  • Khai Xi
  • · Replies 2 ·
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2

Undergrad Electromagnets and contactor relays

  • raymond621
  • · Replies 8 ·
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8

Graduate Field in the plane where a dipole lies

  • DavideGenoa
  • · Replies 6 ·
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6

Graduate Electrostatic Induction and Spray Painting

  • window
  • · Replies 1 ·
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1

Undergrad Galvanic Cells and Electric Potential

  • tonyjk
  • · Replies 3 ·
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3

High School Wikipedia electric charge page confusion

  • Cash Fulton
  • · Replies 9 ·
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9

Undergrad Basic physics question (frequency/energy relation)

  • SoPM
  • · Replies 3 ·
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3

Graduate Maxwell fourth equation incorrect?

  • mdn
  • · Replies 4 ·
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4

Undergrad EM Wave Interference: What Happens to Energy?

  • rmberwin
  • · Replies 1 ·
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1

Graduate V(volt)/A(angstrom) to W(watt)/cm2 (centimeter square)?

  • masyousaf1
  • · Replies 1 ·
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1

Graduate "Violating" Einstein's Photoelectric Effect Model - Comments

  • ZapperZ
  • · Replies 4 ·
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4

Graduate Change in resistance, with respect to magnetic field?

  • PhiowPhi
  • · Replies 17 ·
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17

Undergrad Electric Field Confusion: Explaining E=-∇V & E=-∇V-∂A/∂t

  • Isaac0427
  • · Replies 2 ·
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2

Graduate Why Faraday's law works with superconductors?

  • DoobleD
  • · Replies 4 ·
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4

Undergrad Can charge be held in a vacuum?

  • steve15614
  • · Replies 13 ·
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13

Undergrad Help with radio waves and electromagnetic fields

  • Moe123
  • · Replies 12 ·
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12

Undergrad Electric Field Calculation for Volume and Surface Charges?

  • timothy ser
  • · Replies 5 ·
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5

Undergrad How do you calculate the voltage between two charged nodes?

  • Cuppasoup
  • · Replies 10 ·
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10

Graduate How can magnetic force do positive work when it's known to do zero work?

  • Abid Mir
  • · Replies 39 ·
2
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39

High School Electromagnetic nature of light

  • Ellispson
  • · Replies 8 ·
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8

Undergrad Experimental derivation of magnetic force on a wire

  • nickek
  • · Replies 2 ·
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2

Graduate Efficiency of piezoelectric materials

  • ryanuser
  • · Replies 1 ·
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1

Graduate Electromagnetic wave... How is it getting transmitted?

  • jijopaul
  • · Replies 4 ·
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4

Undergrad Magnetic field due to straight wire on the line itself

  • Hithesh
  • · Replies 2 ·
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2

Undergrad Using lightning for electrolysis

  • triden
  • · Replies 2 ·
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2

Graduate Simulator for Radiometry:Radiosity/Radiant Flux density?

  • RedneckPhysics
  • · Replies 2 ·
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2

Graduate Electric and magnetic field of a plane wave through a slab?

  • J_Physics
  • · Replies 10 ·
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10

Undergrad Electric field lines extending to infinity?

  • SquidgyGuff
  • · Replies 4 ·
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4

Graduate Non Uniform Electric Field Lines Problem

  • Abid Mir
  • · Replies 15 ·
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15

Undergrad Produce Electricity from unused Radio waves?

  • supratim1
  • · Replies 30 ·
2
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30

High School Magnetic Donuts: How to Tell North & South Poles?

  • X_Art_X
  • · Replies 5 ·
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5

Undergrad Current in metal rod of gold leaf electroscope -- is it there?

  • gracy
  • · Replies 5 ·
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5

Undergrad Surface chrge density on current carrying conductor?

  • Navaraj Baniya
  • · Replies 1 ·
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1

Undergrad Why can current flow from power line to earth ground?

  • DoobleD
  • · Replies 33 ·
2
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33

High School Do just electrons emit photons?

  • desta41
  • · Replies 63 ·
3
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63

Undergrad Induced Voltage in an unclosed loop

  • AlejandroDes
  • · Replies 3 ·
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3

Graduate Help with electromagnetic musical instrument design

  • ulfurh
  • · Replies 14 ·
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14

High School Charge transfer between two capacitors in an open circuit

  • juvan
  • · Replies 6 ·
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6

Undergrad Formula of Solenoid Magnetic B-field at Ending, Middle and Outside

  • benofer90
  • · Replies 14 ·
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14

Graduate Heat flux trough non-homogeneous bar

  • AbreuEE
  • · Replies 1 ·
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1

Graduate Maximum Angular Velocity of an Electric Motor

  • Physicist97
  • · Replies 2 ·
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2

High School How much time it takes for Voltage to drop?

  • Prashan Shan
  • · Replies 10 ·
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10

Undergrad Dumb question about conductors in electric field

  • Kenan
  • · Replies 29 ·
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29

Graduate Clarification regarding physical fields from Fourier amp's

  • Max Karlsson
  • · Replies 1 ·
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1

Undergrad Charge a Capacitor: Qualitative & Quantitative Explanations

  • person_random_normal
  • · Replies 9 ·
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9

Undergrad Question about light as an EM wave

  • Kenan
  • · Replies 9 ·
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9

Graduate LC series oscillator with DC supply

  • Shinji83
  • · Replies 2 ·
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2

High School How much energy to heat water (in Watts/Wh)

  • drzeus
  • · Replies 9 ·
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9

High School Understanding Current in Series Circuits: Explaining 6A with 12V and 2 Ohms

  • Lim Y K
  • · Replies 6 ·
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6

High School Electron Charge: How Particles Get Their Charge

  • i.physics
  • · Replies 8 ·
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8

Graduate Skin depth: Same for current as for incoming EM wave?

  • Wminus
  • · Replies 3 ·
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3

Undergrad Parallely Connect Batteries: What is the Equivalent Emf?

  • fireflies
  • · Replies 14 ·
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14

Graduate Microscopic, and Tensoral Poynting Th., Vector, & Lorentz F.

  • stedwards
  • · Replies 10 ·
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10

Undergrad What is the Net Resistance in this Complex Resistor Problem?

  • Fisherlam
  • · Replies 17 ·
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17

Graduate Instantaneous collapse of magnetic field?

  • Lady MYSTERY
  • · Replies 8 ·
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8

High School Maximizing Efficiency: Understanding Power Usage in Voltage Adapters

  • Adamuss
  • · Replies 7 ·
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7

Graduate Magnetic B Field Equation Due To Multi-Layer Solenoid

  • benofer90
  • · Replies 8 ·
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8

Graduate Using the divergence theorem to prove Gauss's law?

  • kittyset
  • · Replies 2 ·
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2

Undergrad What Happens When a Magnet Rotates Inside a Toroidal Coil?

  • Salvador
  • · Replies 18 ·
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18

Undergrad Li ion battery electrode surface area

  • nick leigh
  • · Replies 4 ·
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4

Undergrad Can Earth Still Hold Charge Even When Connected to a Conductor?

  • Brajesh kedia
  • · Replies 10 ·
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10

Undergrad AC Generator With Repelling Magnets

  • benofer90
  • · Replies 26 ·
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26

Graduate Electric field generated by voltage on a sheet

  • Archer Borz
  • · Replies 4 ·
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4

Undergrad Formula of Average Magnetic B Field Strength of Large Conductor

  • benofer90
  • · Replies 5 ·
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5

Undergrad Coulomb potential in hydrogen atom nomenclature

  • DiracPool
  • · Replies 8 ·
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8

Undergrad Eddy currents, and induced current, can they both co-exist?

  • PhiowPhi
  • · Replies 11 ·
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11

Undergrad Can a Charge Repel a Neutral Object?

  • Spectrum90
  • · Replies 7 ·
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7