Electromagnetism Forum

Post thread

Threads

High School Building a Dynamo: Components & Voltage Production

  • ramtough34
  • · Replies 1 ·
Replies
1

High School What is the main origin of electromagnetic waves?

  • physics love
  • · Replies 6 ·
Replies
6

Graduate Calculating Self-Inductance of Long Current-Carrying Wire

  • iitjee10
  • · Replies 9 ·
Replies
9

High School Does a Magnet Exert Energy When Sticking to a Surface?

  • RestlessMind
  • · Replies 8 ·
Replies
8

Undergrad Calculating Distance for Hall Effect Sensor Activation

  • BradyChan7
  • · Replies 8 ·
Replies
8

Undergrad Evidences of the electromagnetic nature of light

  • lalbatros
  • · Replies 5 ·
Replies
5

Graduate Why some metals have 0 resistance at 0 kelvin

  • nipiano93
  • · Replies 1 ·
Replies
1

High School Electromagnetic induction silly question

  • crx
  • · Replies 11 ·
Replies
11

Undergrad Relationship between relative frequencies of electromagnetic spectrum and sound

  • mollymoo
  • · Replies 2 ·
Replies
2

Graduate What force acts on the material of the capacitor in the Graham-Lahoz experiment?

  • Alex Barri
  • · Replies 4 ·
Replies
4

Undergrad Calculate Displacement at Any Frequency: f_modal, d_modal, f_actual

  • ncr7
  • · Replies 2 ·
Replies
2

High School Why is the current the same in a series circuit?

  • zippyhippy
  • · Replies 5 ·
Replies
5

High School Which Bulb is Brighter in a Series Circuit: 100W or 40W?

  • Ambidext
  • · Replies 15 ·
Replies
15

Graduate Electromagnetic Tensor: Vector Space Explained

  • Gavroy
  • · Replies 6 ·
Replies
6

Undergrad Understanding Capacitors Better

  • magu1re
  • · Replies 5 ·
Replies
5

Graduate Are Maxwell's Equations The Most Pivotal Postulate of Classical Physics?

  • maverick_starstrider
  • · Replies 20 ·
Replies
20

High School Van de Graaff + Leyden jar a dangerous demo?

  • cyborgasm
  • · Replies 2 ·
Replies
2

Graduate What is the Demagnetizing Field in Magnetism?

  • Master J
  • · Replies 1 ·
Replies
1

Graduate Question on a step in deriving Poynting Theorem.

  • yungman
  • · Replies 3 ·
Replies
3

High School Creating a Dynamo System: What Components Are Needed?

  • ramtough34
  • · Replies 4 ·
Replies
4

Undergrad Magnetic Field & Neodynium Cube: Strength Comparisons

  • Quantum1000
  • · Replies 1 ·
Replies
1

Undergrad Voltage across capacitors in parallel

  • sinsaman88
  • · Replies 1 ·
Replies
1

High School Magnetic Shielding: Experiment Materials Available?

  • Gabe21
  • · Replies 4 ·
Replies
4

Undergrad Maxwells derivation for speed light

  • NeilWallace
  • · Replies 2 ·
Replies
2

Graduate Simple Harmonic Motion of a Dielectric Slab in a Parallel Plate Capacitor

  • maverick280857
  • · Replies 6 ·
Replies
6

High School Why do capacitors with different capacitance values have different uses?

  • fluidistic
  • · Replies 7 ·
Replies
7

Undergrad Let's say we have a 120 Volt AC source

  • Evil Bunny
  • · Replies 95 ·
4
Replies
95

How Would the World Function Without Electromagnetism?

  • lilixtearss
  • · Replies 1 ·
Replies
1

Undergrad What Keeps an Electron Spinning in Orbit?

  • mAMBOkING
  • · Replies 2 ·
Replies
2

Graduate Deriving equation of stored electrical energy in a charge distribution.

  • yungman
  • · Replies 8 ·
Replies
8

Graduate My question concerns electromagnetic (EM) wave propagation.

  • lost_in_space
  • · Replies 2 ·
Replies
2

Graduate Calculating constant field lines

  • illuzioner
  • · Replies 5 ·
Replies
5

Undergrad Conjecture about parallel and series circuits

  • bcrowell
  • · Replies 3 ·
Replies
3

Undergrad What are electromagnetic proceses?

  • lavster
  • · Replies 1 ·
Replies
1

Graduate No Electromagnetic Force in Moving Magnet & Solenoid

  • brainyman89
  • · Replies 32 ·
2
Replies
32

Graduate Exploring the Potential of Vertically Stacked Permanent Magnet Alternators

  • BurnIt0017
  • · Replies 1 ·
Replies
1

Graduate Magnetism lingo: Applied H? or Applied B?

  • iLIKEstuff
  • · Replies 6 ·
Replies
6

Undergrad Recycled Electromagnetic Induction

  • Mako Ruu
  • · Replies 6 ·
Replies
6

Undergrad How Are Electric Forces Related to Electromagnetic Waves?

  • TheTankEngine
  • · Replies 7 ·
Replies
7

Undergrad Charge Buildup & Equalization on Batteries A & B

  • Evil Bunny
  • · Replies 35 ·
2
Replies
35

Undergrad Induced emf is proportional to the magnetic flux

  • haleycomet2
  • · Replies 8 ·
Replies
8

Undergrad Electric Rays & Eels: Electricity Storage & Conversion

  • Stanley514
  • · Replies 5 ·
Replies
5

Undergrad Electric field along an electric current

  • ran13
  • · Replies 5 ·
Replies
5

Undergrad Flow of charges in a conductor

  • abhiroop_k
  • · Replies 8 ·
Replies
8

Undergrad Why do magnetic compasses spin when in the presence of magnetic rock?

  • Bararontok
  • · Replies 3 ·
Replies
3

Undergrad RC Circuit/Kirchhoff rules question?

  • pdeco1
  • · Replies 1 ·
Replies
1

High School Why Are Good Conductors of Heat Also Good Conductors of Electricity?

  • aakash123456
  • · Replies 8 ·
Replies
8

Undergrad Some questions about Faraday heaping

  • hchs9818
  • · Replies 9 ·
Replies
9

Undergrad Electric Field Near an Infinite Plane: Why Does Distance Not Matter?

  • blmatan
  • · Replies 7 ·
Replies
7

High School Constructing Ammeters and Voltmers

  • mark1989
  • · Replies 2 ·
Replies
2

Undergrad Why does a solenoid coil move when a large current is sent through it?

  • Salamon
  • · Replies 2 ·
Replies
2

High School Quick question. Bulbs in series circuit

  • dantheman91
  • · Replies 11 ·
Replies
11

Graduate Calculating the force between a magnet and an electromagnet

  • SMD1990
  • · Replies 1 ·
Replies
1

High School Is it possible that if i wear a faraday's cage

  • quietrain
  • · Replies 13 ·
Replies
13

Undergrad If given the capacitance in (pF), how do you find the electric field (V/m)?

  • thebest140
  • · Replies 2 ·
Replies
2

High School What happens to capacitance and voltage when a battery is disconnected?

  • FahimP
  • · Replies 5 ·
Replies
5

High School Is my Leyden jar experiment properly designed?

  • miraiw
  • · Replies 6 ·
Replies
6

Undergrad Physical meaning of time-integral of voltage

  • dom_stb
  • · Replies 8 ·
Replies
8

Undergrad Does Ohm's Law still apply when the total number of Amps is limited?

  • Simfish
  • · Replies 2 ·
Replies
2

High School Why doesn't my magnet stick to the hhd magnetic plate?

  • Pithikos
  • · Replies 7 ·
Replies
7

Graduate How to discharge something through dielectric?

  • Stanley514
  • · Replies 2 ·
Replies
2

Undergrad Question about voltage difference?

  • Frostbytez
  • · Replies 1 ·
Replies
1

Graduate Magnetostatics boundary conditions.

  • 0ddbio
  • · Replies 1 ·
Replies
1

Undergrad Electrostatic Induction / Conduction Question

  • RestlessMind
  • · Replies 14 ·
Replies
14

Undergrad Can Light Be Deflected by a Constant Electric Field?

  • Gavroy
  • · Replies 4 ·
Replies
4

Graduate Conductors with off-centered cavity

  • raging
  • · Replies 5 ·
Replies
5

Undergrad Understanding Voltage Drop in Wheatstone Bridge Circuits: A Comprehensive Guide

  • birdbybird
  • · Replies 5 ·
Replies
5

Are Rare-Earth Magnets Available in Specific Brick-Like Dimensions?

  • UshEly
  • · Replies 1 ·
Replies
1

Graduate Maxwell's Demon: Exists, Hard at Work at Phase Interfaces

  • klimatos
  • · Replies 12 ·
Replies
12

Graduate Light frequency/electron interactions

  • gonegahgah
  • · Replies 3 ·
Replies
3

Graduate Can Faraday's Law of Magnetic Induction Lead to Anti-Gravity?

  • !kx!
  • · Replies 23 ·
Replies
23

High School [beginner] Current in a capacitive circuit

  • rahuld.exe
  • · Replies 19 ·
Replies
19

Graduate Structural alignment in ferromagnetism

  • sci-guy
  • · Replies 2 ·
Replies
2

High School Magnetism: How & Why Metals Are Magnetic

  • ajanthakumar
  • · Replies 1 ·
Replies
1

High School Charge vs. Voltage: What's the Difference?

  • Evil Bunny
  • · Replies 13 ·
Replies
13

Undergrad Electricity Confusion: True or False?

  • MrMumbleX
  • · Replies 2 ·
Replies
2

High School To make metal positvely charged

  • Yogesh Yola
  • · Replies 8 ·
Replies
8

High School Magnets lines of force are electrons?

  • Femme_physics
  • · Replies 13 ·
Replies
13

Undergrad Peculiar results obtained (concerns electrolytes)

  • PedroB
  • · Replies 5 ·
Replies
5

High School Capacitors (Series And Parallel)

  • lozoot93
  • · Replies 1 ·
Replies
1

High School Is an Electromagnetic Wave the Same as a Wave in Water or Air?

  • TheTankEngine
  • · Replies 3 ·
Replies
3

Graduate Question on TEM wave travel in parallel plate transmission line.

  • yungman
  • · Replies 10 ·
Replies
10

Undergrad Electric Potential of a Charged Disk

  • thegreenlaser
  • · Replies 3 ·
Replies
3

Graduate How to make a large stern gerlach magnet

  • luiz1
  • · Replies 4 ·
Replies
4

High School Can someone explain how moving a magnet induces a current?

  • TheTankEngine
  • · Replies 2 ·
Replies
2

High School What is the Nature of Electric Current?

  • Utter Novice
  • · Replies 4 ·
Replies
4

Undergrad The current of primary and secondary windings

  • fawk3s
  • · Replies 8 ·
Replies
8

Undergrad Electrical fields can be negated, but what about gravitational fields?

  • michael650
  • · Replies 2 ·
Replies
2

Undergrad Question Related to Electric Flux

  • michael650
  • · Replies 1 ·
Replies
1

High School Discharging capacitor half life

  • Googl
  • · Replies 7 ·
Replies
7

Undergrad Calculating Distance of Floating Body Above Magnet Surface

  • Levi tation
  • · Replies 6 ·
Replies
6

High School Who discovered electromagnetism before Øersted but dismissed it?

  • meni
  • · Replies 2 ·
Replies
2

High School Force between Wires: Is it Electromagnetic?

  • Brown Arrow
  • · Replies 1 ·
Replies
1

Undergrad Program that simulates magnets and how they interact

  • s09
  • · Replies 2 ·
Replies
2

High School What force prevents electrons from falling into the nucleus?

  • Tim Edilation
  • · Replies 3 ·
Replies
3

Undergrad Amplitude Modulation: Sine Wave Carrier of 750kHz, 4.0V, Modulated by 3kHz, 0.5V

  • NabeelIshaq
  • · Replies 2 ·
Replies
2

Graduate Gravitational flux and divergence theorem

  • checksix
  • · Replies 2 ·
Replies
2

High School Creating a One-Sided Magnet? | Natural Occurrence of Magnets

  • Femme_physics
  • · Replies 3 ·
Replies
3

Graduate Charge density and the Heaviside stepfunction

  • khary23
  • · Replies 2 ·
Replies
2

High School Why does one coulomb equal 6.241 × 10^18 electrons?

  • Femme_physics
  • · Replies 9 ·
Replies
9