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Force exerted by an iron core electromagnet on a ferrofluid
May 2, 2022
Replies
2
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2K
A
Variation of Energy for Dielectrics (Zangwill's Electrodynamics)
Apr 30, 2022
Replies
3
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1K
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Electric field is zero in the center of a spherical conductor
Apr 28, 2022
Replies
44
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4K
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Why is there no induced charge outside of the conductor?
Apr 26, 2022
Replies
10
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2K
I
Electric field, flux, and conductor questions
Apr 25, 2022
Replies
14
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2K
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Trying to derive Gauss' law using a cylindrical surface
Apr 25, 2022
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2
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1K
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Do materials surrounding magnets affect how superconductors levitate?
Apr 24, 2022
Replies
5
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2K
Why is current defined as the rate of change of charge?
Apr 23, 2022
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6
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2K
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If we take two charges and hold one still, what are the forces?
Apr 23, 2022
Replies
9
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1K
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What is wrong with crossing electric fields? Why can't you sum them?
Apr 23, 2022
Replies
19
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2K
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How to determine the sign of an angle in Bio Savar's law?
Apr 23, 2022
Replies
1
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813
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Electric field vector takes into account the field's radial direction?
Apr 21, 2022
Replies
3
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1K
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Will this dipole rotate or change position?
Apr 21, 2022
Replies
8
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1K
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Unifying Lagrangians in Electrodynamics: Fμν, Aμ Jμ, & Lorentz Force
Apr 20, 2022
Replies
4
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2K
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Jackson Sec 2.6 on "general solution" of charge near sphere
Apr 19, 2022
Replies
5
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2K
Why is there no negative sign in the Faraday's Law stated here
Apr 15, 2022
Replies
4
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2K
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Power equation in railgun operation
Apr 14, 2022
Replies
7
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1K
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B-Fields: Deriving Faraday's Law & Why No Work?
Apr 13, 2022
Replies
6
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1K
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Incident electric field attenuation near a metallic plate
Apr 12, 2022
Replies
2
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1K
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Generator stator: Copper wire or copper sheets?
Apr 10, 2022
Replies
5
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3K
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Magnetic generator multiple poles. Cancel out or short circuit?
Apr 10, 2022
Replies
8
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2K
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Sum of the dot product of complex vectors
Apr 8, 2022
Replies
2
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1K
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EM equations - am I missing something?
Apr 4, 2022
Replies
4
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1K
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Magnet through Pipe Experiment, continued
Apr 3, 2022
Replies
5
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1K
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Question regarding the use of Electric flux and Field Lines
Apr 1, 2022
Replies
25
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2K
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Group velocity for an electromagnetic wave inside glass
Mar 30, 2022
Replies
1
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1K
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Understanding the Expression for a Linear EM Wave Transmission?
Mar 26, 2022
Replies
2
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1K
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Why is my magnetic levitation experiment not working?
Mar 25, 2022
Replies
22
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3K
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Propagation modes and linear systems
Mar 24, 2022
Replies
1
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1K
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Derivative of the retarded vector potential
Mar 24, 2022
Replies
1
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2K
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Something about retarded potentials for oscillating electric dipole
Mar 21, 2022
Replies
1
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2K
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Questions regarding Magnetorheological fluids
Mar 18, 2022
Replies
1
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1K
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A moving magnet in a linear electric field
Mar 14, 2022
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8
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2K
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Seeking the Equation of Motion for a charged mass attached to a spring
Mar 8, 2022
Replies
22
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3K
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How to obtain Hamiltonian in a magnetic field from EM field?
Mar 7, 2022
Replies
6
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1K
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Quantifying the magnetic force on a magnet moving through a coil?
Mar 6, 2022
Replies
5
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2K
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Ion Trap and Time-Varying Potentials
Mar 2, 2022
Replies
1
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1K
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Electrostatic Influence and Series-Connected Capacitors
Feb 23, 2022
Replies
5
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2K
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Real world problem - Child's toy engine
Feb 19, 2022
Replies
6
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1K
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Is the scalar magnetic Potential the sum of #V_{in}# and ##V_{out}##
Feb 17, 2022
Replies
1
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977
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Relation between electric & magnetic fields in terms of field strength
Feb 16, 2022
Replies
41
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6K
Magnetic Flux vs Temperature Relationship in Ferromagnets
Feb 12, 2022
Replies
26
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9K
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What parts of an EMW does a ferrite rod antenna respond to?
Feb 12, 2022
Replies
11
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1K
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Estimation of E-field strength at a distance from dipole antenna
Feb 10, 2022
Replies
4
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2K
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Induced Electric and Magnetic Fields Creating Each Other
Feb 8, 2022
Replies
3
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2K
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Measuring characteristic impedance as suggested by KRAUS' book
Feb 8, 2022
Replies
13
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1K
I
Magnet falling though copper pipe
Feb 4, 2022
2
Replies
59
Views
7K
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Dielectric breakdown voltage of air vs. Electric field in thunderstorm
Jan 26, 2022
Replies
4
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3K
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Is the Kink in the Electromagnetic Wave Responsible for Delayed Motion?
Jan 23, 2022
Replies
8
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2K
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Behaviour of electrons in a teltron tube
Jan 22, 2022
Replies
13
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2K
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Does a DC supplied superconductive coil give off radiation?
Jan 10, 2022
Replies
32
Views
3K
B
Coulomb pressure and concentric spheres
Jan 9, 2022
Replies
1
Views
985
I
Help with electromagnetics: the Poynting Vector and Ampere contradiction
Jan 5, 2022
Replies
14
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3K
I
Question regarding Electrical Resistivity of metal vapors
Jan 3, 2022
Replies
8
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2K
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Positive Charges: Explaining Motion Despite Net Force = 0
Jan 1, 2022
Replies
9
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2K
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Birkeland Currents Collision: Effects & Consequences
Dec 30, 2021
Replies
10
Views
1K
Thread about Jackson's Classical Electrodynamics 3rd edition
Dec 30, 2021
Replies
43
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11K
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Electric flux density and confusion about units
Dec 27, 2021
Replies
1
Views
2K
B
Electric flux -- Which of these three definitions is correct?
Dec 27, 2021
Replies
9
Views
1K
B
Magnetic Fields and Particle Movement: How Do Magnets Affect Electrons?
Dec 27, 2021
Replies
1
Views
2K
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Do electrons flow in an electrical circuit?
Dec 26, 2021
Replies
14
Views
4K
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Perfect conductor in rotating magnetic field
Dec 26, 2021
Replies
6
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2K
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What is the origin of Lorenz force?
Dec 26, 2021
Replies
5
Views
2K
B
What is Destructive Interference?
Dec 20, 2021
Replies
48
Views
4K
Resistance of a bulb 100 W, 230 V
Dec 19, 2021
Replies
16
Views
8K
Maxwell's Equations, Dielectrics, Auxiliary Fields D and H
Dec 14, 2021
Replies
16
Views
2K
A
Compactness and complexity in electrodynamics
Dec 12, 2021
Replies
4
Views
1K
I
Observing Emission Spectra from Computer Screens
Dec 12, 2021
Replies
2
Views
2K
I
Guidance Requested on Inductance Formula for Solenoid
Dec 10, 2021
Replies
2
Views
1K
I
Check out this YouTube video on EM waves in free space
Dec 7, 2021
Replies
7
Views
2K
I
Where is Laplace's Equation Valid in Different Domains?
Dec 6, 2021
Replies
1
Views
1K
I
EM Power transmitted from one region to another (normal incidence)
Nov 29, 2021
Replies
6
Views
1K
I
Help with FLP argument of non-uniformly distributed surface charges
Nov 27, 2021
Replies
2
Views
1K
B
To confirm if I am correct about the role of voltage in a circuit
Nov 26, 2021
Replies
13
Views
2K
A
Angularly Propagating Modes In a Cylindrical Waveguide
Nov 23, 2021
Replies
5
Views
1K
A
Why are only TM waves allowed in this geometry? (Planar interface)
Nov 12, 2021
Replies
0
Views
997
I
Divergence of the Electric field of a charged circular ring
Nov 12, 2021
Replies
12
Views
2K
Magnetic Resistance Exercise Bike Theory Question
Nov 11, 2021
Replies
14
Views
6K
I
How Do Dielectrics Influence Electric Flux Density in Electromagnetic Theory?
Nov 11, 2021
Replies
5
Views
2K
B
Conductors in the triboelectric series
Nov 11, 2021
Replies
2
Views
1K
Electric Field Intensity: Intersecting E-fields Explained
Nov 10, 2021
Replies
16
Views
3K
I
Explaining Current Behavior in an LC Circuit
Nov 10, 2021
Replies
6
Views
3K
I
Can a One Direction Transformer Prevent Reverse Induction in Primary Coil?
Nov 6, 2021
Replies
21
Views
2K
I
Electric field of uniformly polarized cylinder
Nov 4, 2021
Replies
5
Views
3K
I
Motion of a charged particle -- Changes in KE and PE?
Oct 22, 2021
Replies
9
Views
2K
I
Why does increasing resistance in a conductor decrease power dissipation?
Oct 22, 2021
Replies
7
Views
2K
I
Drude model with and without an electric field
Oct 21, 2021
Replies
3
Views
1K
A
Faraday effect breaks photon interaction laws
Oct 21, 2021
Replies
4
Views
1K
Photon-photon interaction, EM frequency overlap
Oct 14, 2021
Replies
20
Views
2K
I
Electron two-slit experiment in classical electromagnetism
Oct 1, 2021
Replies
34
Views
2K
I
Classical electron uncertainty
Sep 30, 2021
Replies
14
Views
1K
I
Why are field lines parallel in a uniform field?
Sep 29, 2021
Replies
3
Views
2K
I
Induction heating vs Current heaing
Sep 28, 2021
Replies
1
Views
1K
I
Electronics experiment boards -- What experiment can I do with these?
Sep 27, 2021
Replies
4
Views
1K
B
EM Radiation Amplitude: Is Peak Related to Intensity?
Sep 24, 2021
Replies
3
Views
1K
I
Opaque-wall-with-hole argument from Feynman lectures
Sep 23, 2021
Replies
2
Views
908
B
Understanding Flux: The Measure of Field Lines Passing Through a Surface
Sep 19, 2021
Replies
35
Views
4K
I
Building a Linear Induction Motor | Tips & Tricks
Sep 17, 2021
Replies
16
Views
3K
B
Can anyone tell me the name of this device?
Sep 15, 2021
Replies
8
Views
1K
I
Could Iron Filings Form Rings Around a Magnetized Sphere in Space?
Sep 15, 2021
Replies
24
Views
2K
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