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Undergrad Can an enclosure surrounding a Tx antenna act as a receiving antenna?

  • genekuli
  • · Replies 2 ·
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2

Undergrad Lenz's Rule and Ferromagnetism

  • TP9109
  • · Replies 1 ·
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Undergrad EM wave reflected or transmitted?

  • asada
  • · Replies 8 ·
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8

Graduate How to Use Duality in Computational Electromagnetic Problems

  • Paul Colby
  • · Replies 1 ·
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1

High School Magnetism used as a repulsive force

  • Pr1mals
  • · Replies 7 ·
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7

Graduate Can magnetic fields do positive work in certain circumstances?

  • haruspex
  • · Replies 30 ·
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30

High School Gravity equivalent of Ohm's law

  • Nathi ORea
  • · Replies 32 ·
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32

Undergrad Estimating Particle Number in an Electric Field

  • naviakam
  • · Replies 1 ·
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1

Graduate Do charges always lie on the inner surface of capacitors?

  • phantomvommand
  • · Replies 22 ·
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22

Undergrad Question about potential and current in potentiometer circuit

  • songoku
  • · Replies 11 ·
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11

Undergrad How does smoothing an AC voltage with a capacitor work?

  • phantomvommand
  • · Replies 3 ·
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3

Undergrad High School Magnetic Field Lab

  • nmsurobert
  • · Replies 12 ·
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12

Undergrad Does Watt's Law apply to flowing water in a pipe?

  • Jack of some trades
  • · Replies 2 ·
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2

Undergrad Magnetic field does no work -- true in all branches of physics?

  • CPW
  • · Replies 3 ·
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3

Graduate Can a Toroidal Core and Hall Effect Sensor Create Transparent Permanent Memory?

  • arivel
  • · Replies 13 ·
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13

Undergrad Meaning of F = -dU/dx for capacitors

  • phantomvommand
  • · Replies 6 ·
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6

Graduate Electrical energy stored by charged concentric spherical shells

  • phantomvommand
  • · Replies 3 ·
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3

Graduate Principle of superposition for charges/induced charges

  • phantomvommand
  • · Replies 2 ·
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2

Graduate Question about Ampere's Force Law derivation

  • DirecSa
  • · Replies 9 ·
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9

Graduate Changes in electric field lines as a result of an oscillating charge

  • Costweist
  • · Replies 43 ·
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43

Undergrad Can Two Identical Charged Conductors Have a Potential Difference?

  • jezza10181
  • · Replies 5 ·
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5

Undergrad Capacitance of a Sphere: A Quick Calculation Method

  • arydberg
  • · Replies 6 ·
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6

Undergrad What is the relationship between voltage and flux in Faraday's Law?

  • alan123hk
  • · Replies 78 ·
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Graduate Electromagnetic inertial reaction force?

  • jcap
  • · Replies 12 ·
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12

Undergrad Calculating the force on an electron from two positive point charges

  • Antonis Hadjipittas
  • · Replies 2 ·
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2

Graduate Symmetry associated with current conservation

  • arlesterc
  • · Replies 6 ·
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6

Undergrad Potential Gradient for individual charges and parallel plates?

  • ZEROBRAINCAPACITANCE
  • · Replies 33 ·
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33

Graduate Permanent magnet's magnetic field calculation

  • fluidistic
  • · Replies 23 ·
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23

Graduate Solution of Poisson's Equation

  • DirecSa
  • · Replies 4 ·
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4

Undergrad What do we mean when we say that charge is moved or transfered

  • SHASHWAT PRATAP SING
  • · Replies 24 ·
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24

Graduate Charged particle oscillation about the origin

  • kelly0303
  • · Replies 4 ·
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4

High School What do we mean by the charge on a body is denoted by "q"?

  • SHASHWAT PRATAP SING
  • · Replies 36 ·
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36

Graduate Conservation of Energy on Current-Carrying Wire in Magnetic Field

  • yosimba2000
  • · Replies 2 ·
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2

Undergrad How Does Each Element in the Permittivity Tensor Matrix Represent an Anisotropic Material?

  • lholmes135
  • · Replies 9 ·
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9

Graduate Confusion when dealing with loops and surfaces with Maxwell equations

  • greg_rack
  • · Replies 2 ·
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2

Undergrad Demagnetizing Magnets: Alternating & Direct Currents

  • Gomide Math
  • · Replies 3 ·
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3

Undergrad Which of these magnets should have the strongest strength at 10cm?

  • coquelicot
  • · Replies 19 ·
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19

Graduate Electrical Permittivity of Classical Vacuum - Physical?

  • LarryS
  • · Replies 16 ·
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16

High School Electric Charge is basic property of matter or subatomic particles ?

  • SHASHWAT PRATAP SING
  • · Replies 4 ·
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4

Graduate Alternating current and Average power

  • LagrangeEuler
  • · Replies 4 ·
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4

Undergrad Earth's Magnetic Field: Why Doesn't It Lose Its Properties?

  • Luiz Felipe Ramos
  • · Replies 6 ·
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6

Graduate Black body radiation vs electric discharge in a gas

  • naviakam
  • · Replies 70 ·
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High School Magnet falling thru copper tube -- How does the process occur visually?

  • notsosmrt
  • · Replies 4 ·
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4

Undergrad How does permittivity in Coulomb's law work?

  • Efeguleroglu
  • · Replies 5 ·
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5

High School What Is the Correct Calculation for Induced EMF in This Circuit Scenario?

  • alan123hk
  • · Replies 6 ·
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6

Graduate Energy within an electric field

  • Bhope69199
  • · Replies 40 ·
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40

High School Can a horseshoe magnet without separated poles still function as a magnet?

  • Steven Ellet
  • · Replies 2 ·
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2

Undergrad Software simulator for point charges & conductors

  • feynman1
  • · Replies 2 ·
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2

Graduate Whether charges can stay inside wires or on the surface of a conductor

  • feynman1
  • · Replies 1 ·
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1

Graduate 2 charged conductors connected by a wire

  • feynman1
  • · Replies 20 ·
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20

Graduate Physics History (Maxwell) Rotary Vectors?

  • Storm3371
  • · Replies 1 ·
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1

Undergrad Is the magnetic field inside a solenoid stronger near the border?

  • Rafikix
  • · Replies 6 ·
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6

Graduate 2 charged conductors form a capacitor

  • feynman1
  • · Replies 15 ·
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15

Graduate High Energy Maxwell-Boltzmann distribution?

  • naviakam
  • · Replies 1 ·
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1

Graduate An Interesting Question on Faraday's Law of Electromagnetic Induction

  • Narayanan KR
  • · Replies 11 ·
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11

Graduate Electromagnetism and the Pauli Exclusion Principle

  • Cobul
  • · Replies 14 ·
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14

Graduate Electric Field Shielding: Does a Conductor Shield Inside?

  • arestes
  • · Replies 4 ·
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4

High School What materials produce higher levels of static electricity?

  • Thies_Kohl
  • · Replies 1 ·
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1

Undergrad Does Poynting's Theorem only involve external fields?

  • jcap
  • · Replies 1 ·
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1

High School Can the human body affect a radio receiver?

  • Tony Hau
  • · Replies 20 ·
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20

Undergrad Deriving Curl of B from Biot-Savart Law & Vector Identity

  • georg gill
  • · Replies 30 ·
2
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30

Undergrad Question about this Continuity Equation (electromagnetism)

  • hagopbul
  • · Replies 3 ·
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3

Graduate Energy paradox in classical electrodynamics?

  • jcap
  • · Replies 19 ·
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19

High School Vacuum permittivty with alternative Standard-Unit for meters

  • GoodQuestion
  • · Replies 3 ·
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3

Graduate Magnetic Mirror and particle trap

  • QuarkDecay
  • · Replies 1 ·
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1

Graduate Derivation of torque on general current distribution

  • user1139
  • · Replies 4 ·
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4

Graduate Most probable energy and speed for Maxwell-Boltzmann distribution

  • addaF
  • · Replies 4 ·
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4

Graduate What is the weird field in dielectrics?

  • Kaguro
  • · Replies 6 ·
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6

Undergrad Right Hand Rule for Electromagnets

  • N-SKY
  • · Replies 8 ·
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8

Graduate E-Field immediately outside a charged conductor

  • llha
  • · Replies 5 ·
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5

Graduate A charged conducting ring rotating B field -- referece frames

  • artis
  • · Replies 2 ·
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2

Undergrad Does electricity have a propagation delay?

  • astrodummy
  • · Replies 18 ·
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18

Graduate Induced current in a coil from a constant uniform magnetic field?

  • greg_rack
  • · Replies 5 ·
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5

Undergrad Confusion about the right hand rule (Lorentz Force)

  • sk8ermeb
  • · Replies 3 ·
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3

Graduate Let's make some single-domain magnetic nanoparticles

  • etotheipi
  • · Replies 6 ·
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6

Graduate Electrostatic Induction in Metals vs Insulators

  • rdjohns12
  • · Replies 1 ·
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1

Undergrad Resonant frequency of a pipe submerged under water

  • supak111
  • · Replies 5 ·
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5

Undergrad What happens if you increase μ0 and decrease ϵ0? Or vice versa

  • em3ry
  • · Replies 68 ·
3
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Graduate Waveform produced by a collapsing magnetic field

  • em3ry
  • · Replies 32 ·
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32

Graduate To derive the piezoelectric effect in crystals

  • etotheipi
  • · Replies 3 ·
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3

Graduate Lorentz and Gauge invariance of EM

  • AHSAN MUJTABA
  • · Replies 4 ·
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4

Graduate How does the saturation flux density affect magnetic field strength?

  • yosimba2000
  • · Replies 1 ·
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1

Graduate Law of motion for orbiting particle in a uniform magnetic field.

  • sergiokapone
  • · Replies 14 ·
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14

High School A question about an electron’s movement in a DC circuit

  • Tiger
  • · Replies 37 ·
2
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37

Graduate How do I generate a magnetic vector field using equations?

  • darkdave3000
  • · Replies 17 ·
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17

Graduate "Heat current" on a microscopic level

  • zb23
  • · Replies 10 ·
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10

High School Who invented electric potential and why?

  • Anti Hydrogen
  • · Replies 13 ·
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13

Undergrad Identical Wires with different voltage--does electron behavior differ?

  • LouisL
  • · Replies 19 ·
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19

Undergrad What Causes Induced EMF in Conductive Bars Moving Through Magnetic Fields?

  • greg_rack
  • · Replies 20 ·
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20

Graduate Creating stationary neutrons by colliding protons and electrons

  • arusse02
  • · Replies 5 ·
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5

Graduate If the charge oscillates at relativistic velocities

  • arcTomato
  • · Replies 4 ·
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4

Undergrad What effects does an electric field have on potential energy?

  • JoeyBob
  • · Replies 9 ·
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9

Graduate Thomson scattering -- Photons can only scatter from free electrons?

  • artis
  • · Replies 18 ·
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18

Graduate How to calculate the time until charged particles collide

  • 69911e
  • · Replies 13 ·
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13

High School A problem regarding static charge -- rubbing a metal rod with wool

  • sahilmm15
  • · Replies 3 ·
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3

Graduate Work done via induced charges in a grounded conductor

  • GeniVasc
  • · Replies 2 ·
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2

Undergrad Can Point Charges Be Used to Approximate Charged Bodies?

  • sahilmm15
  • · Replies 2 ·
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2

Undergrad Angular frequency versus normal frequency?

  • EnchantedEggs
  • · Replies 16 ·
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16

Graduate B field around a wire, single wire electromagnet

  • artis
  • · Replies 2 ·
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2

High School Atoms: Understanding Frequency of Revolution

  • sahilmm15
  • · Replies 2 ·
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2