Electromagnetism Forum

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Undergrad Electromagnetic induction open cuircuit and how to determine direction

  • sgstudent
  • · Replies 7 ·
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7

Graduate Can the Magnetic Reynolds Number be Proven with Simple Math?

  • kd001
  • · Replies 4 ·
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4

High School Understanding Coulomb's Constant: Explained for Beginners

  • acpower89
  • · Replies 10 ·
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10

Undergrad Electric field inside conductor

  • jd12345
  • · Replies 3 ·
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3

High School How Do Coulombs and Amperes Measure Electricity?

  • polaris90
  • · Replies 3 ·
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3

Graduate Magnetic field and a charge in room

  • roboticmehdi
  • · Replies 5 ·
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5

Graduate How Does Core Material Affect EMF Induction in Guitar Pickup Coils?

  • yungman
  • · Replies 5 ·
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5

Undergrad A few questions about light, solar panels, and electric currents.

  • stefan10
  • · Replies 9 ·
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9

Graduate Additionl field proportional to magnetisation?

  • jd12345
  • · Replies 1 ·
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1

Undergrad How Relevant Are 1960s Solenoid Design Principles Today?

  • awygle
  • · Replies 1 ·
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1

Undergrad Why Does EMF Cancel Out When a Magnet Moves Constantly Inside a Solenoid?

  • sgstudent
  • · Replies 1 ·
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1

Undergrad How can we see visible light since electric and magnetic fields are invisible?

  • alkmini
  • · Replies 20 ·
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20

Graduate Electrohydroconvection Engine?

  • cynopolis
  • · Replies 1 ·
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1

Graduate Self inductance of a very thin conductor, is infinity?

  • constfang
  • · Replies 3 ·
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3

High School Basic conductor and current related question

  • kambez
  • · Replies 1 ·
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1

Undergrad Same frequency different wavelength?

  • hasankamal007
  • · Replies 1 ·
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1

Undergrad Compass and the direction of a magnetic field

  • ComptonFett
  • · Replies 6 ·
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6

Undergrad Displacement current vs eddy current

  • VaikGeomatics
  • · Replies 5 ·
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5

Undergrad Non ohmic graph and distance vs time graph

  • sgstudent
  • · Replies 3 ·
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3

High School Questions regarding basic electricity and unit conversion

  • psyhprog
  • · Replies 2 ·
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2

Undergrad Confusion on Concept of Electric Potentials/Potential Energy

  • The Head
  • · Replies 1 ·
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1

Graduate Original Maxwell equations versus todays version

  • Firefox123
  • · Replies 8 ·
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8

High School What exactly determines the energy of a wave? the intensity? or the frequency?

  • mutineer123
  • · Replies 1 ·
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1

Graduate Finding the B field in a long cylindrical hole in a long wire

  • VortexLattice
  • · Replies 1 ·
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1

Undergrad How can I find electrostatic interaction force

  • Beezus
  • · Replies 1 ·
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1

Graduate E. field due to a hollow spherical conductor containing a point charge (NOT centred)

  • PhorTuenti
  • · Replies 1 ·
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1

Graduate Building an electromagnet hover-coaster

  • ultravolts
  • · Replies 3 ·
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3

Undergrad A couple of concepts I would like to understand.

  • Lifprasir
  • · Replies 1 ·
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1

Undergrad Permitivity and Permeability: What's the Difference and When Do We Use Them?

  • dervast
  • · Replies 12 ·
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12

High School Use of magnets to create power?

  • bogus313
  • · Replies 8 ·
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8

High School What happens to an electron in the electric field

  • hikarigenzo
  • · Replies 7 ·
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7

Undergrad Electric Field for infinite sheet of uniform charge per unit area

  • robbondo
  • · Replies 10 ·
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10

Graduate Electric Field of extended mass

  • Redoctober
  • · Replies 8 ·
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8

High School Creating Electricity through Mechanical Rotation: The Electrical Generator

  • rezihk
  • · Replies 4 ·
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4

High School Movement of a magnet due to repulsion (help)

  • Kieranlavelle
  • · Replies 4 ·
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4

High School Calculating the force between Magnets

  • AFSstudent
  • · Replies 1 ·
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1

Undergrad Magnetic field strength effected by insulation of wire

  • samieee
  • · Replies 5 ·
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5

Graduate To which extent cathode rays can be considered as current in a wire

  • universal_101
  • · Replies 6 ·
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6

High School Can You Survive Being Shocked by 120 Volts While Wet?

  • nothingman
  • · Replies 6 ·
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6

Undergrad Electric Field Magnitude b/w Capacitor Plates

  • ComptonFett
  • · Replies 2 ·
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2

Graduate Understanding corona discharge

  • TheLil'Turkey
  • · Replies 7 ·
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7

Undergrad Passing a current from a metal wire through an electrolyte solution

  • sceptichymist
  • · Replies 4 ·
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4

High School Shield speaker magnet from activating reed

  • Harvey Sherma
  • · Replies 3 ·
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3

Undergrad How to Adjust Frequency of EM Wave

  • sawer
  • · Replies 11 ·
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11

Undergrad What is the Science Behind Electric Shock and Grounding?

  • RiddlerA
  • · Replies 71 ·
3
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71

Undergrad Basic Fluid Dynamic Question (Oil Return on Turbocharged Car)

  • propav8r
  • · Replies 4 ·
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4

Undergrad Tesla Coil Safety: Is It Safe?

  • Opus_723
  • · Replies 3 ·
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3

Undergrad Building H20 electrolysis cell, need advice

  • axemaster
  • · Replies 5 ·
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5

Graduate Accelerated Electron: EM Radiation Source

  • sharma_satdev
  • · Replies 1 ·
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1

Undergrad Question on the Gauss' Law's Qenc

  • IsaacOh
  • · Replies 4 ·
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4

Graduate The electrical potential of charge-neutral masses

  • kmarinas86
  • · Replies 5 ·
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5

Undergrad How to Find Resistance from a Non-Linear I vs. V Graph?

  • kgal
  • · Replies 1 ·
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1

Undergrad Is Voltage Drop Greater in Weak Batteries Compared to Good Ones?

  • Whakataku
  • · Replies 3 ·
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3

Undergrad Can Power Be Transmitted via Radio Waves?

  • thorguy57
  • · Replies 3 ·
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3

Undergrad Why do electric arcs in a Jacob's Ladder rise upwards?

  • n1caboose
  • · Replies 3 ·
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3

Graduate Calculating Flow Around Elliptical Cylinder w/ Point Charges

  • meldraft
  • · Replies 8 ·
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8

Graduate Energy tolerance for orbital of electrons

  • MikeGomez
  • · Replies 2 ·
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2

Undergrad Question on magnetic attraction and repulsion?

  • Ralphonsicus
  • · Replies 4 ·
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4

Graduate Do non-inertial frames perceive a B field?

  • cragar
  • · Replies 10 ·
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10

Minimum magnetic field detected and measured

  • mather
  • · Replies 4 ·
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4

High School How is Ohm's Law tested and understood?

  • DocZaius
  • · Replies 7 ·
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7

Undergrad Capacitors: How to determine the charge density at each surface?

  • AlonsoMcLaren
  • · Replies 2 ·
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2

Undergrad Can You Create a Circular Magnet with Circular Magnetisation?

  • DrZoidberg
  • · Replies 1 ·
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1

Graduate Energy of proton electron system

  • sharma_satdev
  • · Replies 1 ·
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1

Graduate Equivalence of Integral and Differential Forms of Gauss's Law?

  • BucketOfFish
  • · Replies 2 ·
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2

High School What is Electricity? Explaining Induction Transfer

  • anj16
  • · Replies 3 ·
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3

Undergrad Why r R is electric field of a point charge?

  • livewire5
  • · Replies 6 ·
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6

Undergrad Parallel plate capacitor's charge

  • livewire5
  • · Replies 1 ·
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1

Graduate What is the relationship between induced emfs and circuit shape in a solenoid?

  • TheLil'Turkey
  • · Replies 2 ·
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2

Graduate Complex variables in compound expressions of electrodynamics

  • andresordonez
  • · Replies 1 ·
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1

Undergrad Understanding Antennas based on GPS

  • ahmadicabara
  • · Replies 1 ·
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1

Undergrad Changing electric flux caused by a resistor

  • TheLil'Turkey
  • · Replies 3 ·
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3

Undergrad Strength of induced magnetic field inside an inductor

  • warfreak131
  • · Replies 2 ·
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2

Undergrad (Conceptual) questions about capacitors, circuits

  • ustudent
  • · Replies 1 ·
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1

Graduate Solving Biot-Savarts Law for Finite Thickness Current Loops

  • Niles
  • · Replies 1 ·
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1

Undergrad How to magnetize a concrete wall?

  • oem7110
  • · Replies 50 ·
2
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50

High School What Constitutes an Electromagnetic Wave?

  • justwild
  • · Replies 2 ·
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2

How to magnetize water using super magnet?

  • oem7110
  • · Replies 27 ·
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27

High School Magnet Basics: Where to Buy, Strengths, and Polarity?

  • Mozart
  • · Replies 9 ·
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9

Undergrad Electrostatic induction in a conductor should be immpossible

  • hms.tech
  • · Replies 2 ·
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2

How to remove the magnetic property for screw driver?

  • oem7110
  • · Replies 21 ·
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21

Undergrad What Is Natural Frequency & How Does It Affect Objects?

  • mutineer123
  • · Replies 52 ·
2
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52

Undergrad What happen to a metal bar near a Van de Graaff?

  • oem7110
  • · Replies 6 ·
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6

Undergrad Understanding the Electric Field of a Rod: Differences in Integrals Explained

  • livewire5
  • · Replies 6 ·
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6

Undergrad Why higher resistance means more heat produced in a circuit

  • sgstudent
  • · Replies 9 ·
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9

Graduate Is Electromagnetic Energy Linked to Atomic Charges?

  • xiola
  • · Replies 3 ·
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3

Undergrad Would a Faraday cage block all types of radar?

  • tthompson53
  • · Replies 10 ·
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10

High School What kind of charges is within the smoke from cigarette?

  • oem7110
  • · Replies 1 ·
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1

Undergrad Evidence that light is electromagnetic wave

  • bksree
  • · Replies 1 ·
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1

Undergrad What Happens to the Magnetic Field in a Hollow Ball of Hemispheric Magnets?

  • linklink
  • · Replies 4 ·
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4

Graduate Finding the E field with a changing p?

  • swimforever
  • · Replies 1 ·
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1

Undergrad Given an electric field, how to find its field lines?

  • AlonsoMcLaren
  • · Replies 1 ·
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1

Undergrad Do Electrons Attract AND Repel?

  • FeDeX_LaTeX
  • · Replies 10 ·
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10

Undergrad Electromagnetic force required to levitate an object

  • bks008
  • · Replies 2 ·
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2

Graduate Help w/ using Blevins formula for natural frequency of a cylinder

  • GenSoft3d
  • · Replies 1 ·
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1

Graduate Pair of moving charged particles

  • zebediah49
  • · Replies 2 ·
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2

Undergrad Use Kirchoff's rules to determine I1, I2 and I3 for the following circuit:

  • Chingo2010
  • · Replies 2 ·
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2

Undergrad Projectile motion air resistance calculator - tutorial?

  • Pega
  • · Replies 5 ·
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5

Undergrad Electromagnetic Waves and Boundary Behavior

  • dargahi
  • · Replies 1 ·
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1

Undergrad Questions About Magnetism: Forces & Flux

  • rktpro
  • · Replies 1 ·
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1