Electromagnetism Forum

Post thread

Threads

High School Speed of Electron - How Fast Does it Travel?

  • johann1301
  • · Replies 3 ·
Replies
3

Undergrad Why Does Voltage Versus Energy Exchange in an Electromagnet Show a Linear Trend?

  • Da Apprentice
  • · Replies 3 ·
Replies
3

Undergrad Building a Capacitor: Plate Separation & Dielectrics

  • Sefrez
  • · Replies 7 ·
Replies
7

Graduate Outside the Electromagnetic Spectrum

  • arjose
  • · Replies 4 ·
Replies
4

Undergrad Coulomb law for moving charges

  • jo2jo
  • · Replies 16 ·
Replies
16

Undergrad Magnet in a AC current solenoid

  • sgstudent
  • · Replies 3 ·
Replies
3

Undergrad Potential difference of capacitor in circuit

  • iampaul
  • · Replies 16 ·
Replies
16

Undergrad What really happens when charging a capacitor?

  • iampaul
  • · Replies 2 ·
Replies
2

Undergrad Flux Linkage - what, where, why?

  • lntz
  • · Replies 2 ·
Replies
2

Graduate Understanding Mass & Resistance: Basics Explained

  • nouveau_riche
  • · Replies 16 ·
Replies
16

High School Having a really hard time understanding Lenz's Law

  • coldjeanz
  • · Replies 1 ·
Replies
1

Undergrad Understanding Units of ln Voltage to Logarithmic Quantities

  • jsmith613
  • · Replies 18 ·
Replies
18

Undergrad Field inside conductor-is it zero every where?

  • ARAVIND113122
  • · Replies 3 ·
Replies
3

Graduate Induced emf in a solenoid from a current carrying wire nearby

  • silentstorm
  • · Replies 3 ·
Replies
3

High School Salt water and tap water conducting electricity - help appreciated

  • Thanks4helpin
  • · Replies 7 ·
Replies
7

Undergrad The Mystery of Voltage Increase & Current Decrease

  • ihateblackbox
  • · Replies 10 ·
Replies
10

Graduate Dielectric effect on induced electric field.

  • BMPaul
  • · Replies 1 ·
Replies
1

Graduate Basic questions of electromagnetic radiation

  • Helicobacter
  • · Replies 3 ·
Replies
3

High School Electric Potential(V) and Electric Potential Energy(U) laws

  • lonewolf219
  • · Replies 3 ·
Replies
3

High School Resistors that doesn't affect the others

  • stardust006
  • · Replies 2 ·
Replies
2

Undergrad Fundamental and basic physics questions on flux lines

  • ihateblackbox
  • · Replies 15 ·
Replies
15

Graduate Capacitors, Entropy & Energy Loss

  • RobinSky
  • · Replies 7 ·
Replies
7

Graduate Solenoid + Transformer + Current buildup interval

  • Sefrez
  • · Replies 1 ·
Replies
1

Graduate Eddy current in an infinitely long cylindrical conductor in an solenoid

  • Hassan2
  • · Replies 17 ·
Replies
17

Undergrad Why don't magnets violate conservation of energy?

  • Xyius
  • · Replies 13 ·
Replies
13

High School What charges on my hair after comb?

  • oem7110
  • · Replies 3 ·
Replies
3

Undergrad Why does voltage drop to zero over a resistor?

  • robjow
  • · Replies 2 ·
Replies
2

High School Can an electron move to a higher energy level on a permanent basis?

  • memphisforest
  • · Replies 27 ·
Replies
27

High School Get shocked when wearing the shoes

  • Chuck88
  • · Replies 7 ·
Replies
7

Undergrad What causes electric charges to experience forces?

  • azabak
  • · Replies 1 ·
Replies
1

High School Does RPM affect electricity generation?

  • Ralphonsicus
  • · Replies 2 ·
Replies
2

Graduate Does the universe has a capacitance?

  • shpongle
  • · Replies 4 ·
Replies
4

High School Why is there a lack of current in lemon batteries?

  • ojs
  • · Replies 5 ·
Replies
5

Graduate Magnetic field causing a force

  • Sefrez
  • · Replies 4 ·
Replies
4

Undergrad Electric field inside a void in a conductor?

  • Hassan2
  • · Replies 3 ·
Replies
3

Graduate What is Electron Ptychography Imaging and its potential applications?

  • Greg Bernhardt
  • · Replies 2 ·
Replies
2

Undergrad Why did Coulomb choose 1.6x10^-19 for the charge of an electron?

  • kjamha
  • · Replies 7 ·
Replies
7

Graduate Magnetic Field & π: Uncovering the Mystery

  • Amir H.Saba
  • · Replies 3 ·
Replies
3

Graduate Symmetry associated with conservation of electric charge.

  • azabak
  • · Replies 2 ·
Replies
2

Graduate Are both velocity and jerk of charges responsible for magnetic fields?

  • kmarinas86
  • · Replies 9 ·
Replies
9

Undergrad Gauss's law and surface electrons on a charged conductor, contradiction?

  • bob900
  • · Replies 17 ·
Replies
17

Undergrad Electrons flow in thermionic emmission?

  • captain-hawks
  • · Replies 1 ·
Replies
1

Undergrad Shield Magnetic Field: Best Material & Thickness for 10A Current

  • strokebow
  • · Replies 15 ·
Replies
15

Graduate What does it mean and how to convert picture to spatial frequency

  • amylase
  • · Replies 13 ·
Replies
13

Undergrad Classical Electron: Will It "Fall" Into the Nucleus?

  • LogicX
  • · Replies 2 ·
Replies
2

High School Why do transmission lines use two wires instead of one?

  • fran1942
  • · Replies 4 ·
Replies
4

Undergrad Use of Capacitors in this circuit?

  • Xyius
  • · Replies 12 ·
Replies
12

Undergrad Importance of learning Physics II in the long run?

  • Nano-Passion
  • · Replies 6 ·
Replies
6

Graduate Astounding new discovery on Electrical Heat

  • tlmester
  • · Replies 7 ·
Replies
7

Graduate Acoustic Analysis of Musical Instruments

  • czechman45
  • · Replies 3 ·
Replies
3

Undergrad Voltage problems & Kirchhoff's rules

  • smile0401
  • · Replies 1 ·
Replies
1

Undergrad Difference between electromagnetics and electromagnetism ?

  • shpongle
  • · Replies 6 ·
Replies
6

High School Will a 5A Fuse Melt with 20 Bulbs in Parallel?

  • sgstudent
  • · Replies 7 ·
Replies
7

Graduate Some question on charge inside cavity

  • issacnewton
  • · Replies 5 ·
Replies
5

Undergrad Kilowatt-hour versus kilowatt per hour

  • rainstom07
  • · Replies 8 ·
Replies
8

Graduate Complex representation of electric field

  • Apteronotus
  • · Replies 6 ·
Replies
6

Undergrad What is the Dimension of Electric Charge?

  • azabak
  • · Replies 4 ·
Replies
4

Graduate Why is the Electric Field Magnitude Zero in the Z Direction for an EM Wave?

  • ksnf3000
  • · Replies 1 ·
Replies
1

Gap between the plates of a Thermal Electric Modules

  • ramonegumpert
  • · Replies 11 ·
Replies
11

Graduate Permittivity values in conductors

  • ksnf3000
  • · Replies 3 ·
Replies
3

Undergrad Kinetic to Electric Power Conversion

  • RoSmith
  • · Replies 24 ·
Replies
24

Graduate Tangential component of ElectroStatic Field

  • abhs94
  • · Replies 3 ·
Replies
3

Undergrad Electric field strength and electric potential in a sphere

  • Kurokari
  • · Replies 1 ·
Replies
1

Undergrad Parallel plate capacitor with a dielectric?

  • basenne
  • · Replies 2 ·
Replies
2

Undergrad Joules per Coulomb and the Volt

  • nDever
  • · Replies 16 ·
Replies
16

Undergrad Question about voltage divider rule in series-parallel circuits.

  • glenn21
  • · Replies 4 ·
Replies
4

Undergrad Charged particles in parallel magnetic fields

  • Northprairieman
  • · Replies 1 ·
Replies
1

High School Does Electron spin generate electricity?

  • romsofia
  • · Replies 1 ·
Replies
1

Undergrad How Does an External Charge Affect Flux Through a Cube's Face?

  • jd12345
  • · Replies 15 ·
Replies
15

Graduate Angular momentum of lectromagnetic fields?

  • Hassan2
  • · Replies 2 ·
Replies
2

High School Help Needed: Understanding Electricity & Electrostatic P.D.

  • unexampled
  • · Replies 2 ·
Replies
2

Undergrad How does voltage affect current in a circuit?

  • Taylor_1989
  • · Replies 1 ·
Replies
1

Graduate Can Electric and Gravitational Fields Transport Potential Energy?

  • mysearch
  • · Replies 5 ·
Replies
5

Graduate Poisson's equation applied to an integral

  • Thomas2054
  • · Replies 2 ·
Replies
2

Graduate Affecting Mutual Capacitance w/ an External Field

  • pin0ut
  • · Replies 2 ·
Replies
2

Undergrad Electromagnetic Waves from My PC

  • pauleamonn
  • · Replies 9 ·
Replies
9

Graduate Ampere's Law with Maxwell's correction is equivelant to Ampere's Law?

  • Question Man
  • · Replies 2 ·
Replies
2

Undergrad Magnetic strength over distance

  • magneto123
  • · Replies 1 ·
Replies
1

Graduate Electron's pole rotation in magnetic field

  • gespex
  • · Replies 1 ·
Replies
1

High School What makes work positive (electricity)

  • Eats Dirt
  • · Replies 1 ·
Replies
1

Graduate Integrating by parts Maxwell Lagrangian

  • Lapidus
  • · Replies 1 ·
Replies
1

Undergrad Abs Values in Electric Potential & Potential Difference?

  • chocopenguin
  • · Replies 2 ·
Replies
2

Electric current is found when Menthos is put in Coca cola

  • thinh123
  • · Replies 3 ·
Replies
3

High School Understanding Charge in Physics: Solving a Problem with Plastic Wrap

  • indieindie85
  • · Replies 1 ·
Replies
1

High School Why does a battery die when connected on prallel?

  • polaris90
  • · Replies 11 ·
Replies
11

Graduate Magnetic field inside a material

  • jd12345
  • · Replies 7 ·
Replies
7

Random thoughts on Maxwell's demon

  • ThomasT
  • · Replies 25 ·
Replies
25

Undergrad What is the ratio of the voltmeter readings in this E-field scenario?

  • Septim
  • · Replies 13 ·
Replies
13

Graduate Where to find Electric displacement help

  • Arijun
  • · Replies 1 ·
Replies
1

Undergrad Electric potential equals the negative area under the graph

  • polaris90
  • · Replies 3 ·
Replies
3

Graduate Electrostatics - Coulomb's Law

  • jinksys
  • · Replies 3 ·
Replies
3

Undergrad Do moving electrons emit light?

  • jd12345
  • · Replies 6 ·
Replies
6

Undergrad What Is the Correct Induced Charge on an Uncharged Conductor?

  • athrun200
  • · Replies 4 ·
Replies
4

Undergrad How do I calculate repulsion force between two neodymium magnets?

  • eddybob123
  • · Replies 23 ·
Replies
23

High School Coin Attraction: Understanding Magnetism and Its Effects

  • elnaz
  • · Replies 5 ·
Replies
5

High School Electric Field Location problem?

  • Blue Crayon
  • · Replies 1 ·
Replies
1

Graduate How is the field inside a rod magnet in the presence of ferro magnetic material?

  • yungman
  • · Replies 3 ·
Replies
3

High School Understanding the Role of Resistance in an OR Gate Using Diodes

  • jd12345
  • · Replies 3 ·
Replies
3

Undergrad Electrical Potential - Difference, Field

  • Hunt4Higgs
  • · Replies 1 ·
Replies
1

Graduate Difference between forcing frequency and natural frequency

  • Freakminer64
  • · Replies 1 ·
Replies
1