Electromagnetism Forum

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High School What is the difference between electric field and magnetic field

  • Lizwi
  • · Replies 5 ·
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5

Graduate Electric field betwen laterally displaced parallel plates

  • irstudent
  • · Replies 4 ·
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4

High School How do electrons flow in an electric circuit?

  • lnsanity
  • · Replies 4 ·
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4

Graduate Restoring the magnetic-flux of a magnet

  • cockrobin
  • · Replies 2 ·
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2

Undergrad Static magnet attached to a fridge

  • GuiltySparks
  • · Replies 2 ·
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2

Graduate A Charged metal Sphere [does charge move around]

  • hms.tech
  • · Replies 3 ·
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3

Undergrad The Electric Field Inside an induced Conductor

  • hms.tech
  • · Replies 1 ·
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1

Undergrad Photons coming from atoms, when electron changes levels

  • Bassalisk
  • · Replies 10 ·
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10

Graduate Displacement current between two parallel plates

  • madhatter106
  • · Replies 4 ·
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4

Graduate Energy in AC-Driven Purely Inductive/Capacitive Circuit

  • modulus
  • · Replies 3 ·
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3

Graduate Faraday's Law vs Kirchoff's Rule in circuit - nonconservative fields

  • Dens
  • · Replies 2 ·
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2

Undergrad Finding the energy balance of a hydroelectric power generator

  • bgizzle
  • · Replies 2 ·
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2

Undergrad What's the Difference Between B, H, D and E?

  • tmwong
  • · Replies 18 ·
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18

Graduate Electromagnetic inertia induced by surrounding charges?

  • johne1618
  • · Replies 4 ·
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4

High School Different type of solenoid design help

  • JuanMotta
  • · Replies 7 ·
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7

Graduate Electromagnetic boundary condition

  • erece
  • · Replies 2 ·
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2

High School How do liquid planets generate a magnetic field?

  • ImaLooser
  • · Replies 1 ·
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1

Graduate Do free electrons protons neutrons assemble into atoms?

  • a dull boy
  • · Replies 4 ·
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4

High School A/m Unit Explained: Magnetic Fields

  • ctech4285
  • · Replies 7 ·
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7

Graduate Spinning metallic disk without magnetic field

  • esorolla
  • · Replies 8 ·
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8

Graduate Electric field intensity inside parallel-plate capacitor filled with water

  • 0lolol0
  • · Replies 9 ·
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9

Graduate Direction of propagation of an EM wave

  • tomwilliam
  • · Replies 8 ·
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8

Graduate Graphing magnetic field of two magnets in 3d space

  • cashflow
  • · Replies 4 ·
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4

High School Electricity generation - simple bike dynamo - can anyone explain this design?

  • Steve143
  • · Replies 5 ·
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5

Graduate Vector calculus questions in electrodynamics

  • bigerst
  • · Replies 9 ·
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9

Undergrad Electrical Potential, Voltage, Work

  • chembloke
  • · Replies 3 ·
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3

Graduate Kinetic energy of electron after beta decay

  • Xavius
  • · Replies 10 ·
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10

Graduate Question regarding biot savart law and magnetic fields from current

  • bigerst
  • · Replies 4 ·
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4

Graduate Converting Between CGS and SI Units in Electromagnetism: A Complete Guide

  • schaefera
  • · Replies 16 ·
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16

Graduate Magnetic field induced by a charging infinite plane

  • ItachiUchiha
  • · Replies 1 ·
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1

Graduate Understanding the Invariance of dl in Biot-Savart Law

  • erece
  • · Replies 4 ·
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4

Undergrad Electromagnetics-general questions

  • rbaca170
  • · Replies 1 ·
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1

Undergrad Force exerted by Ferro-magnetic Electromagnet

  • Nythe
  • · Replies 1 ·
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1

Undergrad Can someone explain to me why E is constant?

  • Demon117
  • · Replies 7 ·
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7

Undergrad Coil design and magnet orientation in a unique generator

  • tadietz
  • · Replies 1 ·
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1

Graduate Interaction between two point charges

  • universal_101
  • · Replies 6 ·
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6

High School Electric field intensity 'inside' a wire carrying current

  • undetermined
  • · Replies 1 ·
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1

Undergrad Can Electric Cars Convert Kinetic Energy Back into Electrical Energy?

  • hwall95
  • · Replies 4 ·
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4

High School Electromagnetic Cores: Finding the Right Materials for Your Magnet

  • lprekon
  • · Replies 1 ·
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1

Graduate Why do electro-magnets not violate Conservation of Energy?

  • Lamarr
  • · Replies 21 ·
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21

Undergrad Magnetic Sensor Sensitivity units mV/V/gauss, etc.

  • VinnyCee
  • · Replies 4 ·
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4

High School Highest frequency mankind has ever generated

  • y33t
  • · Replies 8 ·
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8

Undergrad Photo Current to voltage conversion

  • deepak4prp
  • · Replies 1 ·
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1

Graduate What determines which metals will reflect or absorb electromagnetic waves?

  • pa5tabear
  • · Replies 10 ·
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10

Undergrad Proportionality Constant(k) In Coulomb's Law

  • Cetullah
  • · Replies 5 ·
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5

Graduate Constants in the Divergence of E

  • cpsinkule
  • · Replies 5 ·
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5

Undergrad Ideas for practical application of electromagnetic field theory

  • Trip1
  • · Replies 2 ·
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2

Undergrad Steam Turbine / Tesla Turbine - bladless rotor in steam turbine?

  • Tomvader
  • · Replies 4 ·
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4

High School Understanding Battery Energy Flow: Simplified Explanation

  • bbgirl
  • · Replies 15 ·
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15

High School How to talk about the direction of the flow of charge

  • Howard Nye
  • · Replies 13 ·
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13

Undergrad Magnetism & Electricity (2 magnets - Field)

  • declanka
  • · Replies 1 ·
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1

Graduate How are electron position measurement experiments measured out?

  • Rorkster2
  • · Replies 3 ·
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3

Graduate The Nature of Magnetic Force: An Exploration of Relativity and Electromagnetism

  • Rauldz
  • · Replies 2 ·
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2

Undergrad Charging voltage versus battery voltage

  • moatasim23
  • · Replies 10 ·
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10

Undergrad Why Use Twisted Steel Strands in High Voltage Transmission Lines?

  • Aidan123
  • · Replies 2 ·
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2

High School Magnets/ Magnetic fields energy storage?

  • Momento
  • · Replies 10 ·
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10

High School What Battery Voltage is Optimal for My Self-Built Electro Magnet?

  • Trippl7777
  • · Replies 5 ·
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5

Undergrad How electric motors consume energy?

  • Charles123
  • · Replies 57 ·
2
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57

Graduate Calculating Force of Magnetic Slingshot - Soundstone

  • soundstone
  • · Replies 2 ·
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2

High School Hand rule used to find the magnetic field in a single loop wire

  • imeclee
  • · Replies 1 ·
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1

Undergrad Investigating Voltage-Inductance Relationship

  • rahul.6sept
  • · Replies 4 ·
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4

Undergrad Magnet moving in a long long solenoid

  • Deathnote777
  • · Replies 1 ·
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1

High School Question about electromagnetism

  • AH020387
  • · Replies 1 ·
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1

Undergrad Can charged particles be used as a barrier for destroying or displacing objects?

  • Silentkitty2
  • · Replies 3 ·
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3

Graduate What is the force between two magnets and how is it calculated?

  • Hassan2
  • · Replies 11 ·
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11

Graduate Mathematical Explanation of Faraday Cage Theory - Reflected/Transmitted Waves

  • MisterX
  • · Replies 1 ·
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1

Undergrad Could a coaxial cable be used for electric current instead of radio signals?

  • lufc88
  • · Replies 9 ·
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9

Graduate What is the limit of classical electrodynamics?

  • KristallIsa
  • · Replies 1 ·
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1

Undergrad Why will current decrease in a step-down transformer ?

  • Deathnote777
  • · Replies 11 ·
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11

Graduate Understanding the Relationship Between Electromagnetic Radiation and Photons

  • Ezio3.1415
  • · Replies 5 ·
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5

Graduate Does Resistance Truly Reach Zero at Absolute Zero?

  • freefaller
  • · Replies 11 ·
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11

Graduate Nikola Tesla's Dynamic Theory of Gravity

  • danielatha4
  • · Replies 66 ·
3
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66

Undergrad Understanding the Relationship Between Electric Fields and Conductors

  • vig
  • · Replies 5 ·
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5

Undergrad Inductance not working in simple circuit

  • JeffMandell
  • · Replies 2 ·
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2

Graduate Counting electromagnetic modes in a rectangular cavity and boundary conditions

  • Coriolis1
  • · Replies 1 ·
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1

Undergrad How to Convert Angular Frequency to Complex Frequency?

  • Markel
  • · Replies 16 ·
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16

Graduate Can extremely charged objects simulate some black hole effects?

  • Edward Solomo
  • · Replies 5 ·
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5

Graduate What is the difference of positive and negative charge?

  • Cibek
  • · Replies 7 ·
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7

Graduate Electric vs gravitational force

  • g.lemaitre
  • · Replies 8 ·
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8

High School Deriving Current from Drift Velocity Basics

  • Scopesys
  • · Replies 2 ·
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2

Undergrad Acoustics: Directing Sound Waves

  • Aero51
  • · Replies 9 ·
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9

Is there a washable magnetic fabric in existence?

  • NerdAtHeart
  • · Replies 1 ·
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1

Undergrad Understanding Current Dipoles in Retina Modeling and ERG Analysis

  • basheersubei
  • · Replies 5 ·
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5

Undergrad Getting the capacitance in combination of parallel and series

  • gem123456789
  • · Replies 1 ·
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1

Graduate Does electron beams act like current carrying wires to themselves?

  • universal_101
  • · Replies 1 ·
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1

Undergrad Understanding Vector in EM Wave

  • Drakkith
  • · Replies 3 ·
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3

Graduate Magnetic confinement and Alfven's theorem

  • Boltzmann2012
  • · Replies 4 ·
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4

Undergrad Intuitive Definition of Electric Potential

  • Skoth
  • · Replies 7 ·
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7

Undergrad Why is the total energy of the system shown in the figure Q^2/2C

  • thed0ctor
  • · Replies 2 ·
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2

Undergrad Where does the phi come from in the charge of a capacitor in an LC circuit?

  • thed0ctor
  • · Replies 1 ·
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1

Undergrad Solving Magnetic Fields Produced by Multiple Charges in Free Space

  • martin f
  • · Replies 2 ·
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2

Graduate Focusing EM wave and the Linear Superposition Principle

  • htg
  • · Replies 14 ·
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14

Undergrad Cost of driving: electricity vs. gasoline

  • Wordsmith
  • · Replies 61 ·
3
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61

Graduate Wind resistance on a rapidly rotating flywheel

  • tadietz
  • · Replies 6 ·
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6

Graduate Transform Maxwell Equations into k-space

  • spookyfw
  • · Replies 4 ·
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4

Graduate Maxwell's Equation: Magnetic B Field from Moving Charges

  • martin f
  • · Replies 1 ·
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1

Undergrad How do you calculate the Magnetic Moment of a Permanent Magnet?

  • drinksta
  • · Replies 1 ·
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1

Undergrad Water discharge and Bernoulli's equation

  • PTlusitano
  • · Replies 7 ·
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7

Graduate Uniform Field & Poisson equation Mismatch?

  • Apteronotus
  • · Replies 3 ·
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3

Graduate Kooky Idea: Electron Balloon Rocket

  • Maximilien
  • · Replies 7 ·
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7