Electromagnetism Forum

Post thread

Threads

High School What is a Magnetic Screen or Magnetic Shield?

  • Symmetry777
  • · Replies 2 ·
Replies
2

Undergrad Explain Derivatives in Physics: Gauss Law

  • gracy
  • · Replies 29 ·
Replies
29

Undergrad Electrostatic shielding in a cavity

  • @bhishek
  • · Replies 10 ·
Replies
10

Graduate Does Time Delay Affect the Curl of an Electric Field?

  • ngendler
  • · Replies 9 ·
Replies
9

Graduate Ionospheric electron under non-uniform acceleration

  • Vijay Manoj
  • · Replies 1 ·
Replies
1

High School Voltage & Resistance Experiment: Can Resistance Change?

  • sunwoo lee
  • · Replies 5 ·
Replies
5

Undergrad Do diamonds reflect EM waves ?

  • sbratva
  • · Replies 11 ·
Replies
11

High School What is causing the copper wire to not conduct in my inductor coil?

  • nst.john
  • · Replies 2 ·
Replies
2

Undergrad Collision frequency unit conversion

  • s_hy
  • · Replies 4 ·
Replies
4

High School Do We Use Charge Sign in Electric Field Intensity Formula?

  • Herjap
  • · Replies 2 ·
Replies
2

Undergrad Charge on the surface of a sphere induced by a charge inside

  • DivergentSpectrum
  • · Replies 7 ·
Replies
7

Undergrad Clarifying Power = +EPE/Time & Negative Current with Negative Charge

  • sanhuy
  • · Replies 30 ·
2
Replies
30

Graduate Induced-EMF and the Lorentz force?

  • PhiowPhi
  • · Replies 2 ·
Replies
2

Undergrad Would it be possible to hold electrified liquids in the air?

  • jollage
  • · Replies 6 ·
Replies
6

Graduate Effective potential energy of a charge in a magnetic field

  • Ben Johnson
  • · Replies 1 ·
Replies
1

Undergrad Conceptual Question about electric potential

  • Herjap
  • · Replies 9 ·
Replies
9

Undergrad Why Isn't There More Current in Reverse Diode?

  • gracy
  • · Replies 6 ·
Replies
6

Graduate Relationship between density of energy and magnetic force

  • ash misty
  • · Replies 3 ·
Replies
3

Graduate Redundant degrees of freedom in EM fields?

  • DOTDO
  • · Replies 1 ·
Replies
1

Undergrad Why do electrons flow against their nature in a battery?

  • gracy
  • · Replies 6 ·
Replies
6

Undergrad Do Magnetic Dipoles Produce Opposite Field Directions?

  • Frank Einstein
  • · Replies 4 ·
Replies
4

Graduate Is it able to make point charges stationary by electric force?

  • genxium
  • · Replies 17 ·
Replies
17

Undergrad Potential energy of an electron

  • gracy
  • · Replies 6 ·
Replies
6

Graduate Work Done on a System of Charges

  • kmm
  • · Replies 6 ·
Replies
6

Undergrad What force classically held electron in the orbit?

  • oldspice1212
  • · Replies 4 ·
Replies
4

Undergrad Inductance -- why does current lag voltage?

  • derek181
  • · Replies 11 ·
Replies
11

Undergrad EMF induced via change in Area

  • Just_some_guy
  • · Replies 4 ·
Replies
4

Undergrad Does Electrical or Magnetic field attract photons?

  • Ozgen Eren
  • · Replies 11 ·
Replies
11

Undergrad Unusual Three-Poled Bar Magnet: An Unexplained Phenomenon in Physics Class

  • Mr. Klapper
  • · Replies 5 ·
Replies
5

High School How long will a rotating magnet generate electricity?

  • physior
  • · Replies 7 ·
Replies
7

Graduate Paricles in crossed electric and magnetic field

  • iAlexN
  • · Replies 4 ·
Replies
4

Graduate Death Spiral of electrons into the nucleus

  • Ozgen Eren
  • · Replies 12 ·
Replies
12

Undergrad Effect of varying magnetic field on a static charge

  • arul_k
  • · Replies 8 ·
Replies
8

Graduate Magnetic dipole at the centre of a sphere

  • shubham agn
  • · Replies 5 ·
Replies
5

Undergrad How to hide from the electromagnetic spectrum/electrical pol

  • sbratva
  • · Replies 11 ·
Replies
11

Undergrad How Does Bandwidth Relate to Radio Transmission?

  • Jimmy87
  • · Replies 10 ·
Replies
10

Graduate Contradiction in Abraham-Lorentz Force?

  • Ozgen Eren
  • · Replies 6 ·
Replies
6

High School Potential difference and current

  • Supernova123
  • · Replies 3 ·
Replies
3

Graduate Effect of capacitor plates at different angle

  • FALI
  • · Replies 5 ·
Replies
5

Undergrad Why does atom's attraction to electron increase in periods ?

  • KingCrimson
  • · Replies 6 ·
Replies
6

Graduate Why Do We Use the Complex Conjugate of Velocity to Calculate Acoustic Intensity?

  • Radel
  • · Replies 1 ·
Replies
1

High School Explanation of capacitance formula

  • Niaboc67
  • · Replies 6 ·
Replies
6

Undergrad A small doubt about electric flux

  • Joe Da Bro
  • · Replies 7 ·
Replies
7

Graduate Is electric current only a flow of charge?

  • shubham agn
  • · Replies 5 ·
Replies
5

Undergrad Passing mercury through a copper tube

  • -NaN-
  • · Replies 6 ·
Replies
6

High School Watts are associated with heat?

  • Rich76
  • · Replies 8 ·
Replies
8

Graduate Conceptual difficulty with faradays law

  • DivergentSpectrum
  • · Replies 8 ·
Replies
8

Undergrad Total energy of electron due to temperature

  • psyklon
  • · Replies 1 ·
Replies
1

Graduate Maxwell Lagrangian at weak fields

  • PhyAmateur
  • · Replies 1 ·
Replies
1

Graduate What is a charge? Really, what is it?

  • SpaceNerdz
  • · Replies 17 ·
Replies
17

Undergrad Difference between wirewound resistor and inductor

  • mark g
  • · Replies 4 ·
Replies
4

Graduate Is magnetic force conservative in an elastic collision?

  • LmdL
  • · Replies 4 ·
Replies
4

Graduate Why is the curl of this time varying magnetic field still 0?

  • FrankJ777
  • · Replies 4 ·
Replies
4

Undergrad Hysteresis in Induction Cooking

  • Faradae
  • · Replies 2 ·
Replies
2

Undergrad Magnetic/ electric/ gravitational field?

  • Ellie
  • · Replies 5 ·
Replies
5

Undergrad How calculate a single frequency of a multifrequency signal?

  • Richard_Steele
  • · Replies 3 ·
Replies
3

High School Is there a type of powder that can attach to iron objects like a magnet?

  • roineust
  • · Replies 13 ·
Replies
13

Graduate Does eletron spin cause magnetic field?

  • brianhurren
  • · Replies 4 ·
Replies
4

Undergrad Excellent Lorentz Transformation educational video?

  • Wes Tausend
  • · Replies 6 ·
Replies
6

Graduate How do the Maxwell equations transform under a time reversal?

  • Michael_1812
  • · Replies 7 ·
Replies
7

Undergrad How Do You Calculate Current from a Faraday Disc?

  • charlie r
  • · Replies 3 ·
Replies
3

Undergrad Do magnetic fields tend to align? (moving charge & other B)

  • gauss44
  • · Replies 2 ·
Replies
2

Undergrad How exactly does a capacitor discharge?

  • davidbenari
  • · Replies 4 ·
Replies
4

Graduate Normal electric field across the interface

  • Jeffrey Yang
  • · Replies 1 ·
Replies
1

Undergrad Deriving current from decharging capacitor and homogenous DE

  • Jonsson
  • · Replies 1 ·
Replies
1

Undergrad What happens to charge stored in a capacitor when moving the plates?

  • AdityaDev
  • · Replies 2 ·
Replies
2

Graduate Is Impedance Solely Dependent on Lenz's Law?

  • themadquark
  • · Replies 3 ·
Replies
3

Graduate Derive energy of electric dipole in electric field

  • Jonsson
  • · Replies 2 ·
Replies
2

Graduate Electric field inside conductor

  • devd
  • · Replies 2 ·
Replies
2

Graduate Magnetic field lines in a ring magnet

  • Himanshu_6174
  • · Replies 5 ·
Replies
5

Undergrad Why does Gauss's Law for Magnetism prohibit monopoles?

  • QuantumCurt
  • · Replies 10 ·
Replies
10

Undergrad How is the Electric Field Established Inside a Diode When Voltage is Applied?

  • tonyjk
  • · Replies 2 ·
Replies
2

Undergrad Electric energy from thermocouples

  • Brainiac
  • · Replies 5 ·
Replies
5

Graduate Radiometry, photocurrent in optics simulation

  • vst98
  • · Replies 1 ·
Replies
1

Undergrad Does a high emf excite electrons?

  • Northprairieman
  • · Replies 2 ·
Replies
2

Graduate Poynting theorem for harmonic em plane waves

  • Ahmad Kishki
  • · Replies 1 ·
Replies
1

Undergrad Experiment: my like charges didn't repel

  • iScience
  • · Replies 5 ·
Replies
5

Graduate Image formation in terms of electromagnetic waves

  • center o bass
  • · Replies 10 ·
Replies
10

High School How does water volume affect electrical resistance?

  • perfectsphere
  • · Replies 1 ·
Replies
1

Graduate Understanding Propagation of DC Current Along a Conductor

  • Darren93
  • · Replies 6 ·
Replies
6

Undergrad Voltage generated by a vibrating coil around a magnet

  • V0ODO0CH1LD
  • · Replies 4 ·
Replies
4

Graduate Confusion about bound surface current of a cube

  • kevinlee
  • · Replies 1 ·
Replies
1

Graduate Interrupting Attraction of Magnetic Materials: Is it Possible?

  • strobeda
  • · Replies 16 ·
Replies
16

Graduate Faraday rotation and permittivity tensor

  • Hassan2
  • · Replies 2 ·
Replies
2

High School Adjusting an Image in HTML""Adjusting an Image in HTML: Position & Size

  • Tinman
  • · Replies 6 ·
Replies
6

Graduate Why didn't I see a peak at half the frequency in my FFT analysis of two waves?

  • Sam Smith
  • · Replies 4 ·
Replies
4

Undergrad Need a non contact voltage sensor

  • rafeh1
  • · Replies 6 ·
Replies
6

High School Question about speed of an electric current

  • cornsmith
  • · Replies 3 ·
Replies
3

Graduate What is the role of the Higgs boson in unifying different forces and particles?

  • Saw
  • · Replies 5 ·
Replies
5

High School Doubt in parallel plate capacitor

  • AdityaDev
  • · Replies 9 ·
Replies
9

Undergrad Why is the y-component of the electric field in a dipole cancelled out?

  • Raman student
  • · Replies 6 ·
Replies
6

Undergrad For what time does an electron move after current turned off?

  • bananabandana
  • · Replies 7 ·
Replies
7

Undergrad Electric Flux: Definition, Equation & Examples

  • ewr
  • · Replies 2 ·
Replies
2

Graduate What is the significance of the Poynting vector for EM waves?

  • Ahmad Kishki
  • · Replies 2 ·
Replies
2

Graduate Maxwell's demon - a new concept

  • Stanley514
  • · Replies 28 ·
Replies
28

Graduate Solving Antiferromagnetic Ising Model on Square Lattice

  • coolbeets
  • · Replies 2 ·
Replies
2

Undergrad Transparency of light and electromagnetic waves

  • ThomasGR
  • · Replies 1 ·
Replies
1

Undergrad Electric Charge and Magnetism: Constant or Varying Magnetic Field?

  • Dikshant
  • · Replies 10 ·
Replies
10

Undergrad Transmission lines/electrical propogation

  • Darren93
  • · Replies 3 ·
Replies
3

Undergrad Van de graaff generator as a current source

  • abdo799
  • · Replies 9 ·
Replies
9