Electromagnetism Forum

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Graduate Optical Gian vs Electrical Gain

  • narra
  • · Replies 3 ·
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3

Undergrad Electrical components connected between cells

  • sorax123
  • · Replies 6 ·
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6

Graduate Deriving del cross A in Electrodynamics

  • Sparky_
  • · Replies 2 ·
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2

High School Van De Graaf: Why Do Bubbles Repel?

  • tg22542
  • · Replies 1 ·
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1

Graduate Electric Field and Magnetic Conversion

  • onelastdance
  • · Replies 2 ·
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2

Undergrad What frequencies does a permanent magnet emit?

  • Tord Bjornson
  • · Replies 13 ·
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13

Undergrad How does a bent wire keep spinning in a magnetic field?

  • mpatryluk
  • · Replies 1 ·
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1

Undergrad Generate Electricity: 10,000 lb Weight on 30° Track

  • scott22
  • · Replies 16 ·
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16

Graduate Prerequisites for electrodynamics?

  • mpatryluk
  • · Replies 2 ·
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2

Graduate A question about the fundamentality of magnetism

  • mpatryluk
  • · Replies 2 ·
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2

Graduate How to calculate the charge density in an electric field

  • eschavez6
  • · Replies 3 ·
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3

Undergrad Graphene Super capacitor as battery?

  • algar32
  • · Replies 27 ·
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27

Undergrad What happens if plates of charged capacitor gradually separated?

  • Rolliet
  • · Replies 7 ·
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7

Undergrad Understanding Transformers: The Relationship Between Voltage and Amperage

  • yoga face
  • · Replies 15 ·
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15

Graduate Can we spin something to get electric without magnet or piezo?

  • ThainaYu
  • · Replies 16 ·
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16

Undergrad How do you actually ground an object?

  • Fluxthroughme
  • · Replies 6 ·
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6

Undergrad Bouncing charged ball experiment

  • hmiamid
  • · Replies 4 ·
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4

High School Hows does Voltage and Electric Field relate to a battery?

  • Jimmy87
  • · Replies 6 ·
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6

Undergrad Question on variable definitions in Paschens law? (breakdown voltage)

  • Krejuski
  • · Replies 1 ·
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1

Undergrad Calculating pole strength from Tesla?

  • Phztastic
  • · Replies 3 ·
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3

Graduate Why is it important to match frequency to timescale of events?

  • swooshfactory
  • · Replies 5 ·
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5

Undergrad Magnetic Dipoles: Understanding Attraction and Repulsion in Magnetism

  • Phztastic
  • · Replies 2 ·
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2

Undergrad Potential energy of water from electrolysis

  • Grombely
  • · Replies 43 ·
2
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43

Undergrad What is the underdamped frequency of an oscillation?

  • Outrageous
  • · Replies 2 ·
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2

High School What cases can the Hall Effect occur in with copper wire?

  • Phztastic
  • · Replies 1 ·
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1

Undergrad How to calculate the magnetic dipole moment?

  • Phztastic
  • · Replies 10 ·
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10

Undergrad Help with understanding of magnetic fields related to moving electrons

  • Krejuski
  • · Replies 1 ·
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1

Graduate Help Needed: Calculating Force Using Image Charges

  • adamp121
  • · Replies 2 ·
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2

Graduate Coulomb's Constant and the Speed of Light in Vacuum

  • microtech
  • · Replies 1 ·
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1

Graduate Dielectric Boundary Condition Question

  • Apteronotus
  • · Replies 2 ·
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2

Graduate Dielectric Sphere in Uniform Field

  • Apteronotus
  • · Replies 2 ·
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2

Graduate E field above charged spherical surface

  • mathnerd15
  • · Replies 10 ·
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10

Undergrad Electric fields , acceleration

  • Crazymechanic
  • · Replies 18 ·
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18

Undergrad Deceleration of a projectile (With air resistance)

  • SirAmikVarze
  • · Replies 4 ·
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4

High School Current drawn from motors and Eddy Currents

  • Kashim
  • · Replies 8 ·
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8

Undergrad Does a current carrying wire attached to a magnet generate a force?

  • sven1019
  • · Replies 2 ·
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2

Undergrad Stopping Ice Formation on Surfaces: The Power of Electric Fields

  • cippy31
  • · Replies 5 ·
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5

Undergrad Magnetic fields and charged particles

  • falcon32
  • · Replies 14 ·
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14

Graduate Measuring the electrical conductivity of the atmosphere

  • navaugh
  • · Replies 4 ·
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4

Graduate Potential electricity production from water passed through Magma.

  • Iou
  • · Replies 5 ·
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5

Graduate How Do Electron Spins Influence Magnetism?

  • channel1
  • · Replies 1 ·
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1

Graduate Relationship Between Conductance and the Dielectric Constant

  • AnnaLinnea
  • · Replies 1 ·
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1

Undergrad Semiconductor has electron and hole, why not conductor has hole?

  • Outrageous
  • · Replies 3 ·
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3

Undergrad How does alternating current travel anywhere?

  • mpatryluk
  • · Replies 3 ·
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3

Graduate Why is the curl of the magnetic field zero in a vacuum?

  • ShayanJ
  • · Replies 4 ·
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4

Undergrad Current density in a conductor at DC

  • FrankJ777
  • · Replies 5 ·
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5

Graduate Looking for image theory regarding magnetic elements.

  • yungman
  • · Replies 2 ·
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2

Graduate In the Stern Gerlach experiment, electron beam acceleration question

  • mesa
  • · Replies 10 ·
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10

Undergrad Voltmeter: Concept of Letting Rg Be Resistance of Galvanometer

  • nil1996
  • · Replies 6 ·
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6

Undergrad Matching Metals in Electrolytic Capacitors: Necessity or Flexibility?

  • neuro11
  • · Replies 2 ·
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2

Undergrad Electrostatics and the superposition principle.

  • Idara
  • · Replies 1 ·
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1

Undergrad Understanding Low Potential Difference & Current Flow

  • nil1996
  • · Replies 3 ·
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3

Undergrad Converting heat energy to electrical energy

  • hasnainzeenwa
  • · Replies 4 ·
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4

Graduate Stock's theorem and calculation of current density

  • adamp121
  • · Replies 7 ·
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7

Undergrad Mathematical model for interaction force between magnetic fields?

  • Psinter
  • · Replies 3 ·
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3

High School Effect on electrostatic force due to dielectric medium.

  • Deva
  • · Replies 11 ·
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11

Undergrad Is there an electric field in a circuit and how is it created?

  • Jimmy87
  • · Replies 5 ·
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5

Undergrad Relation between electric potential energy and electric field

  • Pushpam Singh
  • · Replies 3 ·
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3

Undergrad Electric Field of Uniformly Charged Ring: Derivation Explained

  • dido28
  • · Replies 9 ·
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9

Graduate What are the physical applications of Lorenz and Coulomb gauge?

  • rida
  • · Replies 3 ·
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3

High School Calculating EMF of a cell using Potentiometer.

  • harjyot
  • · Replies 14 ·
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14

Graduate Using Kirchhoff's rule in RC circuit while charging

  • issacnewton
  • · Replies 2 ·
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2

Graduate I need some intuition for various EM phenomena

  • TheFerruccio
  • · Replies 10 ·
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10

Undergrad How to choose Gaussian surface

  • Pushpam Singh
  • · Replies 2 ·
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2

Undergrad Defining Electric Field around a charge

  • Phynite
  • · Replies 3 ·
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3

Undergrad Work done in moving a charge through an electric field

  • chipotleaway
  • · Replies 9 ·
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9

Undergrad Guass's Law for a charge distribution

  • Demon117
  • · Replies 4 ·
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4

Undergrad The electric intensity E, current density j and specific resistance k

  • animesh184
  • · Replies 2 ·
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2

Graduate Formal definition of Dirac's delta and charge densities

  • fede.na
  • · Replies 4 ·
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4

Graduate Question about an electron beam traveling through static B-fields

  • mesa
  • · Replies 6 ·
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6

Undergrad The stabbing resistance of graphene:

  • Reptile202
  • · Replies 10 ·
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10

Graduate Lagrangian of object with air resistance

  • Maurice7510
  • · Replies 10 ·
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10

Undergrad How does a discharge UV lamp works

  • poul
  • · Replies 4 ·
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4

High School Can a Perpetual Current Machine Actually Exist?

  • shadowfalcon
  • · Replies 2 ·
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2

Undergrad Increasing flux density increases magnetic force?

  • Wiz700
  • · Replies 21 ·
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21

Graduate Units of Flux Density: Electric Field vs Displacement Vector

  • gralla55
  • · Replies 1 ·
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1

Undergrad Is the electric field inside a circuit non-conservative?

  • Nikitin
  • · Replies 11 ·
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11

Undergrad Electric Field Distribution of a Charged Disk: The Role of Symmetry

  • Nikitin
  • · Replies 5 ·
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5

Graduate Magnetic field lines through copper

  • Ravaner
  • · Replies 4 ·
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4

Undergrad Using piezoelectricity for data transmission.

  • great_sushi
  • · Replies 4 ·
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4

Graduate What Affects Soil Magnetization and Susceptibility?

  • paulojomaje
  • · Replies 2 ·
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2

Graduate Radiation from a charged harmonic oscillator

  • HomogenousCow
  • · Replies 1 ·
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1

Undergrad Is 1 Second Equal to 1 Ohm Times 1 Farad in RC Circuits?

  • Zifles
  • · Replies 4 ·
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4

Undergrad Understanding the Relationship Between Voltage and Weber Per Second

  • Zifles
  • · Replies 2 ·
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2

Undergrad Why is dielectric breakdown damaging?

  • iScience
  • · Replies 7 ·
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7

Undergrad Formula for change in speed of a ball considering rolling resistance?

  • heisenbergman
  • · Replies 1 ·
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1

Graduate Deflection/diffraction of static electric field

  • zrek
  • · Replies 17 ·
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17

Undergrad Does electromagnetic waves are generated by dc current?

  • vishvajeet
  • · Replies 17 ·
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17

Graduate E&M Faraday's Paradox: Understanding the Contradiction

  • HAMJOOP
  • · Replies 14 ·
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14

Graduate Entropy and electromagnetic radiation

  • tarakan
  • · Replies 3 ·
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3

Graduate Force Between Two Concentric Solenoids

  • dgreenheck
  • · Replies 1 ·
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1

Graduate Rotating electron as a dipole is this right?

  • mesa
  • · Replies 18 ·
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18

Undergrad When two equal electric current flow opposite to each other in a wire

  • Ezio3.1415
  • · Replies 30 ·
2
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30

Undergrad Can charge induction occur in covalent solids?

  • soumyajitnag
  • · Replies 5 ·
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5

Undergrad Can a neutral atom be affected by magnetic field?

  • s0ft
  • · Replies 8 ·
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8

Undergrad Electric field between parallel plate capacitor

  • gralla55
  • · Replies 3 ·
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3

Undergrad Change in flux of a transformer

  • AbsoluteZer0
  • · Replies 1 ·
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1

Graduate How much negative charge do I accumulate by touching the earth?

  • aaronsky12
  • · Replies 1 ·
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1

Undergrad Current Flow in Series Wire with Different Conductivity

  • HAMJOOP
  • · Replies 1 ·
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1

Graduate Question of reflection and transmission of TEM wave in normal incidenc

  • yungman
  • · Replies 4 ·
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4