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Undergrad Calculating the field outside a solenoid

  • albertrichardf
  • · Replies 2 ·
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2

Graduate What composes the E Field of the Electromagnetic Wave?

  • ThunderLight
  • · Replies 8 ·
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8

Undergrad Probably a Dumb Question: How are E and (delta)V correlated?

  • Iftekhar Uddin
  • · Replies 6 ·
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6

Undergrad 2 Questions: How Electric Potential affects a charge

  • Iftekhar Uddin
  • · Replies 2 ·
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2

Undergrad Energy imparted to an ion by a magnetic field

  • Ken H
  • · Replies 10 ·
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10

Graduate What is the curl of the electric field produced by changing magnetic flux?

  • Xubi
  • · Replies 1 ·
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1

Undergrad Photoelectric effect and bound electrons

  • usman1984
  • · Replies 3 ·
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3

Undergrad Why Inductors Create Large Voltage When Switch Opened

  • mcairtime
  • · Replies 2 ·
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2

High School How much less wind resistance will a round skyscraper have?

  • Batmoosemike
  • · Replies 5 ·
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5

Graduate Self inductance of a superconductor

  • greypilgrim
  • · Replies 1 ·
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1

High School How to prevent static from building up on me

  • rasen58
  • · Replies 3 ·
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3

Graduate One magnet motor that does not break any thermodynamic rules

  • rolnor
  • · Replies 10 ·
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10

Undergrad Differentiating Biot-Savart Law

  • Eri ep
  • · Replies 1 ·
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1

Undergrad Are light waves/ EM waves damped?

  • Arup Biswas
  • · Replies 4 ·
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4

Undergrad Heat produced when a dielectric is inserted into a capacitor slowly

  • aryan pandey
  • · Replies 3 ·
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3

Graduate Lorentz force on a charge due to a moving magnet

  • particlezoo
  • · Replies 1 ·
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1

Undergrad Electric Potential reference value (or zero).

  • fog37
  • · Replies 3 ·
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3

Graduate Interaction between two charged surfaces in contact

  • Glxblt76
  • · Replies 2 ·
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2

High School How to find the appropriate area in Gauss' law

  • AnonymousAnonymous
  • · Replies 5 ·
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5

Undergrad Equation for the motion of an iron particle in a magnetic field

  • ddddd28
  • · Replies 2 ·
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2

Graduate Surface Charge - Poynting Vector - DC circuit power flow

  • Joseph M. Zias
  • · Replies 1 ·
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1

High School Is Electricity the Same as the Motion of Electrons or Charges?

  • egio
  • · Replies 24 ·
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24

High School Levitating a magnet in a Bismuth bowl?

  • rolnor
  • · Replies 12 ·
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12

Graduate Finding the acoustic point in a valley

  • Alfreds9
  • · Replies 3 ·
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3

Graduate Permanent magnets still an open problem

  • jostpuur
  • · Replies 6 ·
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6

Graduate Are Maxwell's Equations True at the Quantum Scale?

  • aliens123
  • · Replies 2 ·
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2

Graduate An electric charge feels its own self electric field

  • fog37
  • · Replies 3 ·
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3

Graduate Particle in an Electromagnetic Field

  • SpaceNerdz
  • · Replies 2 ·
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2

Graduate Why doesn't a charge repel a magnetic field in this example?

  • Samson4
  • · Replies 7 ·
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7

Undergrad Faraday's law for constant velocity, area and B-field

  • greypilgrim
  • · Replies 2 ·
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2

Undergrad Electrostatic polarization and paper bits attraction

  • fog37
  • · Replies 1 ·
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1

Graduate A photon vs an electron. Wave or particle?

  • FallenApple
  • · Replies 4 ·
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4

Undergrad Why do the extra terms cancel in the derivation of the EM field strength tensor?

  • dyn
  • · Replies 2 ·
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2

Undergrad Understanding Voltage Distribution in Series Circuits

  • Glenn G
  • · Replies 5 ·
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5

Graduate Deriving Magnostatics equations from steady currents

  • FG_313
  • · Replies 3 ·
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3

Undergrad Proof of Ampere's Circuital Law: Using the Biot-Savart Law

  • transparent
  • · Replies 12 ·
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12

Graduate Need for Lorentz transformation in pre-relativity period

  • faheemahmed6000
  • · Replies 2 ·
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2

High School Why Is the Potential Energy of a Dipole Zero at 90 Degrees?

  • maf249
  • · Replies 1 ·
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1

Undergrad What causes alternator waveform shape?

  • hogshead
  • · Replies 15 ·
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15

Undergrad Do charges accelerate because their field lines are changed?

  • FallenApple
  • · Replies 1 ·
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1

Undergrad Magnetic Dipole: Discovering μ and Its Origin

  • enerieire
  • · Replies 5 ·
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5

Undergrad Explanation of Biot-Savart Law

  • JustinoChino
  • · Replies 1 ·
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1

Undergrad Understanding the Rise of Current in DC RL Circuits

  • Giuseppe Sorrentino
  • · Replies 6 ·
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6

Undergrad What is actually happening to a charge in a magnetic field?

  • Ravenous Travis
  • · Replies 14 ·
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14

Undergrad Inhibit repulsion between two like poles

  • john1111
  • · Replies 6 ·
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6

Undergrad What is the Pull Strength of a 48v Battery on a 1.5 Ton Weight with DC Power?

  • ChaserNZ
  • · Replies 27 ·
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27

Undergrad What are the considerations for analyzing current through thin gold wires?

  • Joshua L
  • · Replies 6 ·
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6

Graduate Is there energy associated with flux pinning?

  • JohanWunderbar
  • · Replies 4 ·
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4

Undergrad -- E/M conceptual question regarding electric potential

  • momowoo
  • · Replies 19 ·
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19

Graduate Experimental investigation of c in electric & magnetic fields

  • mpolo
  • · Replies 8 ·
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8

High School Is the direction of electric field the direction of current?

  • StevenJacobs990
  • · Replies 8 ·
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8

Graduate Dielectric slab and angle of incidence

  • EmilyRuck
  • · Replies 1 ·
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1

Undergrad Magnetic field when relative velocity is zero

  • donaldparida
  • · Replies 3 ·
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3

Undergrad Why Does Charge Flow Between Capacitor Plates When Shorted?

  • vidit jain
  • · Replies 10 ·
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10

Undergrad Why would a parallel circuit (or in blood) decrease resistance

  • hongiddong
  • · Replies 3 ·
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3

Graduate Is the electromagnetic propagation time asymmetrical?

  • calinvass
  • · Replies 6 ·
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6

Graduate Electron in orbit of around a single proton

  • Ian Baughman
  • · Replies 3 ·
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3

High School Electric field question -- Charges....

  • Tanmay Gupta
  • · Replies 3 ·
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3

Undergrad Dipole above infnite conductor

  • OhNoYaDidn't
  • · Replies 4 ·
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4

Graduate Different versions of covariant Maxwell's equations

  • ShayanJ
  • · Replies 1 ·
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1

Undergrad The right definition of magnetic field?

  • physics user1
  • · Replies 2 ·
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2

Undergrad Finding the Capacitance of the Earth

  • SD das
  • · Replies 3 ·
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3

Undergrad Electric field inside a cavity

  • jonjacson
  • · Replies 5 ·
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5

Undergrad Do Electrons Change Location as Temperature Approaches 0K?

  • SD das
  • · Replies 5 ·
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5

Undergrad Why doesn't the wasp die when I hit it with a fly swatter?

  • Trance-
  • · Replies 12 ·
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12

Undergrad Magnetic field direction on Halbach array?

  • kodachrome
  • · Replies 5 ·
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5

Undergrad What Are the Theories Behind Changing Electric Field Line Patterns?

  • Dadface
  • · Replies 2 ·
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2

Graduate Two hemispheres, and a shell inside dielectric material

  • Phylosopher
  • · Replies 1 ·
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1

Graduate Interesting experiment about the attraction between two magnets

  • NTL01
  • · Replies 11 ·
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11

Undergrad Why an electron's drift velocity is so slow?

  • gigie
  • · Replies 18 ·
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18

Graduate Magnetic field due to displacement current and Ampere's law

  • crick
  • · Replies 1 ·
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1

Graduate Spectral intensities from E&M fields

  • hilbert2
  • · Replies 9 ·
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9

Graduate EM wave penetration through walls....

  • mktsgm
  • · Replies 6 ·
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6

Undergrad Voltages in an induced current

  • Mzzed
  • · Replies 4 ·
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4

Graduate Rigorous definition of magnetic poles?

  • greypilgrim
  • · Replies 2 ·
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2

High School Ampere & Coulomb: Discovering Electrons in 1800's?

  • sobergeek23
  • · Replies 11 ·
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11

High School Did James Clerk Maxwell Ever Draw a Picture of an Electromagnetic Wave?

  • RelativeQuant
  • · Replies 5 ·
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5

Undergrad The difference between Ampere's law & Biot-Savart Law

  • PhiowPhi
  • · Replies 2 ·
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2

High School Tesla Tower Transmission Question

  • forex10
  • · Replies 5 ·
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5

Undergrad Drawing flux and induced EMF graphs - Faraday's/Lenz's law

  • Amanda H
  • · Replies 3 ·
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3

Undergrad Excess charge on insulators and conductors

  • Ruby_338
  • · Replies 4 ·
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4

High School Induction Electric - Does Iron/Steel Work?

  • magman64
  • · Replies 2 ·
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2

Graduate Maxwell's/Faraday Law Concern Propagation of Induced Fields

  • Electric to be
  • · Replies 3 ·
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3

High School What sort of material stops magnetic flow

  • Ryan Walsh
  • · Replies 3 ·
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3

High School The factors determining the induced EMF in a wire

  • Asmaa Mohammad
  • · Replies 6 ·
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6

High School How does a battery make a current?

  • hokhani
  • · Replies 3 ·
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3

Undergrad Why must a Faraday cage be hollow?

  • Clara Chung
  • · Replies 5 ·
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5

High School Magnetism on Earth: Effects & Applications

  • roahan chaudhari
  • · Replies 2 ·
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2

Undergrad Electrical heating transmission wires

  • Glenn G
  • · Replies 5 ·
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5

Graduate Are magnets charged with rotation?

  • sweet springs
  • · Replies 23 ·
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23

Graduate E and B fields for charged particle's parabolic motion

  • peasqueeze
  • · Replies 3 ·
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3

High School Are the second and third circuits same as the first one?

  • donaldparida
  • · Replies 2 ·
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2

High School Sound wave -- positive and negative frequency?

  • btb4198
  • · Replies 5 ·
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5

Undergrad Resistance from fingertip to Earth wire

  • hackhard
  • · Replies 17 ·
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17

Undergrad Is It Safe to Connect Batteries in Parallel?

  • Astronaut500
  • · Replies 16 ·
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16

Graduate How Does Melting Affect the Polarizability and Dielectric Constant of a Medium?

  • Joseph Phan
  • · Replies 1 ·
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1

High School Direction of current in Kirchoff's second law

  • Roroy
  • · Replies 5 ·
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5

High School Frequencies -- what is the average frequency for the human body?

  • susan1993
  • · Replies 5 ·
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5

Graduate Magnetic Gears For Power Transmission

  • person123
  • · Replies 16 ·
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16

Graduate Ionization energy of an electric field

  • Bhope69199
  • · Replies 17 ·
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17