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High School Doubt on an EM problem regarding gauss law

  • ubergewehr273
  • · Replies 2 ·
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2

Undergrad What is responsible for the structure of magnetic fields?

  • gladstone77
  • · Replies 11 ·
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11

Graduate Working with Electric Field E, not Vector Potential A

  • WeiJie
  • · Replies 2 ·
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2

Graduate Energy density of an electromagnetic field

  • PhysicsKT
  • · Replies 3 ·
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3

High School Why does an increase in voltage cause faster electron flow?

  • Mrjoe3012
  • · Replies 22 ·
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22

Graduate Electric resistivity and friction

  • Samson4
  • · Replies 20 ·
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20

Graduate Magnetic Field of a Moving Charge and the Displacement Current

  • tade
  • · Replies 26 ·
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26

Undergrad How does a Faraday Cage block electric fields?

  • solzonmars
  • · Replies 8 ·
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8

Undergrad Please explain "Electromagnetic force is mediated by light"

  • Burken
  • · Replies 10 ·
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10

Undergrad Magnetic field of a hollow conductor in special circumstances

  • Samson4
  • · Replies 2 ·
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2

Undergrad Do two perpendicular wires exert a force on each other?

  • Zack K
  • · Replies 2 ·
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2

Undergrad Electric field outside a spherical shell?

  • solzonmars
  • · Replies 24 ·
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24

Undergrad Project on Electricity & Magnetism(Topic Suggestions needed)

  • TachyonLord
  • · Replies 1 ·
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1

Undergrad Photoelectric Effect versus Laser Stimulated Emission [Confused]

  • Bardia Sahami
  • · Replies 18 ·
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18

High School What is the electric field of a point charge?

  • Amin2014
  • · Replies 6 ·
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6

Undergrad The effect of an external substance on the electric force between two charges

  • hokhani
  • · Replies 12 ·
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12

Undergrad Grounding Process: Neutralizing Negatively Charged Objects

  • Aya Elsayed
  • · Replies 3 ·
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3

Graduate Electrons colliding with gas molecules

  • PORFIRIO I
  • · Replies 1 ·
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1

High School How a Secondary Resistor affects the Transformer Primary Side?

  • KevMilan
  • · Replies 6 ·
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6

Undergrad If a magnet could switch, could it attract and repel?

  • zach_wildmind
  • · Replies 4 ·
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4

High School Batteries and the electric field inside a wire

  • Janez
  • · Replies 18 ·
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18

Graduate The work of magnetic force on the wire

  • hokhani
  • · Replies 12 ·
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12

Graduate Corollary of the Uniqueness Theorem in Electrostatics

  • PhDeezNutz
  • · Replies 1 ·
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1

Graduate Measurement of vacuum diode electron flow

  • Abimbola1987
  • · Replies 29 ·
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29

Graduate How to solve a complex equation to get the current?

  • Adesh
  • · Replies 3 ·
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3

Undergrad Can Rotating Magnets Create a Stronger Magnetic Field?

  • lovicodo
  • · Replies 5 ·
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5

High School Inverse Square Law: Voltage/Current Graphs

  • otterandseal1
  • · Replies 1 ·
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1

Graduate Is the Lorentz magnetic force verified?

  • avicenna
  • · Replies 25 ·
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25

Graduate Magnetic field of a moving charge and Maxwell's equations

  • hokhani
  • · Replies 11 ·
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11

Undergrad Speed of Electrons: A Classic View

  • jochem
  • · Replies 50 ·
2
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50

Undergrad Why does current initially rush into a capacitor?

  • TimNJ
  • · Replies 10 ·
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10

Graduate Maxwell's equations and exterior algebra

  • Wledig
  • · Replies 2 ·
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2

Graduate Have electrons been used to image electrons or ions?

  • Philip Koeck
  • · Replies 7 ·
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7

Undergrad What is the maximum or Nyquist frequency of a Gaussian signal?

  • Jiho
  • · Replies 8 ·
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8

Graduate Ampere's Law: Double Negative Line Integral Help

  • Albertgauss
  • · Replies 5 ·
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5

Graduate I have question about Maxwell's 2nd equation

  • yang hg
  • · Replies 9 ·
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9

Graduate What is the magnetic saturation of gadolinium?

  • cmb
  • · Replies 9 ·
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9

Undergrad Understanding Electron Flow in Vacuum Diodes

  • Abimbola1987
  • · Replies 18 ·
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18

High School Is it dangerous to touch neutral wire?

  • Kevin J
  • · Replies 7 ·
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7

Undergrad Thermionic emission and current density

  • Abimbola1987
  • · Replies 25 ·
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25

Graduate What is instantaneous frequency?

  • Notna
  • · Replies 7 ·
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7

Graduate Electrodynamics: Derivatives involving Retarded-Time

  • WWCY
  • · Replies 1 ·
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1

Undergrad Electric arc: How to calculate the required voltage for a light bow?

  • Hans42
  • · Replies 1 ·
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1

High School Direction of the magnetic field of the Earth

  • some bloke
  • · Replies 16 ·
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16

Undergrad Repulsion of the Earth's Magnetic Field

  • Michael Cote
  • · Replies 7 ·
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7

Undergrad A change in the dielectric constant changes the current or voltage?

  • sabishaw
  • · Replies 12 ·
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12

High School EMF Induction in a Loop of Wire - Does It Work?

  • OmarbinNaeem
  • · Replies 3 ·
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3

Undergrad Calculate the inductance of a solenóide wound on an iron core

  • Teslas
  • · Replies 8 ·
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8

High School Calculating the Uniform B Field in an AC Helmholtz Coil: What's the Formula?

  • artis
  • · Replies 26 ·
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26

Graduate Can an aircraft using a geomagnetic field generate lift?

  • li dan
  • · Replies 18 ·
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18

Graduate Magnetic field on a loop due to another loop

  • aldo sebastian
  • · Replies 2 ·
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2

Graduate Potential of a solid, double cone shaped charge distribution

  • Philip Koeck
  • · Replies 7 ·
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7

Undergrad How can I calculate the voltage between two stationary electrons?

  • Zman
  • · Replies 3 ·
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3

Graduate On the magnetic field in the Meissner effect

  • li dan
  • · Replies 3 ·
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3

Undergrad Let current from a Van de Graff generator flow through you

  • greypilgrim
  • · Replies 5 ·
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5

Graduate Floating potential of a conductor in an electrical field

  • coquelicot
  • · Replies 2 ·
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2

Graduate Theoretical models of the Earth's Electric Field?

  • JyD
  • · Replies 2 ·
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2

Graduate Apparent vanishing of (magnetic) potential energy

  • stockzahn
  • · Replies 2 ·
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2

Graduate Why Are Volume Current Densities Zero on the Surface of Conductors?

  • WWCY
  • · Replies 3 ·
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3

Graduate Maxwell Stress Tensor: Engineering Question Answered

  • mind_inertia
  • · Replies 2 ·
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2

High School The Gain of the Inverting Amplifier and Virtual Earth....

  • Adam Ghannam
  • · Replies 4 ·
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4

Graduate Charge distribution in a resistor with a current

  • fluidistic
  • · Replies 4 ·
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4

High School Do the fields extend to infinity in a solenoid and for a wire?

  • PainterGuy
  • · Replies 15 ·
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15

Graduate How does Gauss's Theorem apply to electric fields near a charged plate?

  • coquelicot
  • · Replies 2 ·
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2

Graduate Quantum Mechanics and Electrodynamics/Electrostatics

  • WWCY
  • · Replies 5 ·
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5

Graduate How does a magnetic field collapse?

  • Robert Friz
  • · Replies 17 ·
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17

Undergrad Where does the energy come from? (magnet)

  • entropy1
  • · Replies 12 ·
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12

Undergrad Experiment for the existence of electrostatic field

  • alan123hk
  • · Replies 21 ·
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21

Graduate Particle movement in a non-static magnetic field

  • Javier Lopez
  • · Replies 1 ·
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1

Graduate Reversing the Faraday effect to get an induced current

  • romeo17
  • · Replies 3 ·
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3

Undergrad What device can produce magnetic fields Iooking to buy

  • joezay20
  • · Replies 10 ·
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10

Undergrad How much power/Electrical energy would this device produce?

  • Deleted member 656102
  • · Replies 10 ·
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10

Graduate Magnetic Dipole Moment of a bar magnet

  • akhila_k
  • · Replies 3 ·
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3

Undergrad What Determines the Presence of Voltage in a Copper Wire?

  • abrogard
  • · Replies 6 ·
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6

Undergrad What Difference Does Voltage Level Make to An Atom?

  • abrogard
  • · Replies 4 ·
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4

Graduate Electromagnetic Field vs Electromagnetic Wave

  • Mohammad Fajar
  • · Replies 25 ·
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25

Graduate Maxwell's Law of Induction - How Does it Work?

  • ItFeelsGoodToBeAlive
  • · Replies 7 ·
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7

High School Magnetism: Explaining the Attraction to a 7-Year-Old

  • Physics is awesome
  • · Replies 2 ·
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2

Undergrad Complex permitivity of good conductors

  • iVenky
  • · Replies 4 ·
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4

Graduate Difference between probability waves & electromagnetic waves?

  • sasan
  • · Replies 22 ·
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22

Graduate Electron in constant acceleration

  • Quantum9999
  • · Replies 14 ·
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14

Undergrad Intrinsic impedance of a resistor

  • iVenky
  • · Replies 10 ·
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10

Graduate Detailed derivation of the inductance effect

  • DaTario
  • · Replies 3 ·
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3

Undergrad Stupid question relating to electric induction

  • atommo
  • · Replies 74 ·
3
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74

Graduate Poisson's equation boundary conditions (electrostatics)

  • gnegnegne
  • · Replies 2 ·
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2

Undergrad Can a 19.8 kHz, 1 megawatt VLF tower melt metal?

  • Johnm35
  • · Replies 18 ·
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18

Graduate From Maxwell's equations to EM waves

  • iVenky
  • · Replies 9 ·
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9

Graduate Can the equations for two retarded potentials satisfy the Lorenz condition?

  • kkabi_seo
  • · Replies 2 ·
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2

Undergrad What happens when magnetic fields cancel

  • seazal
  • · Replies 22 ·
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22

Graduate Varying Gravity and Air Resistance in projectile motion

  • Hector Triana
  • · Replies 7 ·
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7

Undergrad Direction of E field and propagation of wave in a conductor

  • iVenky
  • · Replies 7 ·
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7

Graduate Symmetry of the permittivity tensor of lossless media

  • Ngineer
  • · Replies 2 ·
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2

Undergrad Electric fields and conductors

  • archaic
  • · Replies 3 ·
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3

Graduate What is the optimal thickness for a Faraday cage to attenuate radio signals?

  • schristy
  • · Replies 12 ·
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12

Undergrad Frequency Doubling: Interaction of 2 Waves Explained

  • DariusP
  • · Replies 25 ·
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25

Graduate Electric Potential on the axis of a truncated cone

  • Rasec98
  • · Replies 2 ·
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2

High School Electricity and electrons in the wire

  • Abdullah Wahid
  • · Replies 7 ·
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7

Undergrad Confused by capacitors and potential energy

  • TheCelt
  • · Replies 7 ·
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7

Undergrad Positively Charged Metal Sphere: Reactivity & Capacitors

  • Abdullah Wahid
  • · Replies 4 ·
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4

Graduate How to dampen movement within a magnetic field?

  • frascati
  • · Replies 14 ·
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14