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Symmetry Arguments and the Infinite Wire with a Current
May 17, 2022
Replies
1
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2K
B
Antenna induction, oscillating circuit generating EM Waves
Yesterday, 10:46 AM
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2
Views
86
Redirect
Non-Uniform Magnetic Field Calculations
Friday, 11:33 AM
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What happens to a photon's energy when it is refracted?
Tuesday, 8:50 AM
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13
Views
252
Electron Spin and current-induced magnetic fields
Monday, 8:08 PM
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18
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3K
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Speed of magnetic flux propagation?
Apr 19, 2024
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3
Views
127
B
The voltage between two points
Apr 14, 2024
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10
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167
B
Possible movement of this magnet?
Apr 13, 2024
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2
Views
111
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Question about Activating Solenoids that are facing each other
Apr 11, 2024
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1
Views
103
I
How to calculate the ring resonator radii via Laplace?
Apr 10, 2024
Replies
0
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88
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Iron core barely boosting field strength
Apr 5, 2024
2
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43
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1K
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Problem with one of the premises in electrostatic pressure theory
Apr 3, 2024
Replies
1
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162
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Getting the sign right with the work-energy theorem
Apr 2, 2024
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2
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169
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How Do Eddy Current Dampers Work in Space Applications?
Apr 1, 2024
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4
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291
A
An electrolytic capacitor keeps charging by itself
Mar 27, 2024
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14
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481
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Force between opposing magnets
Mar 26, 2024
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7
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344
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Does Diamagnetism Occur Even in a Constant Magnetic Field?
Mar 25, 2024
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7
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548
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qv x B force in electron's proper frame
Mar 24, 2024
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6
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223
Diamagnetism & levitation of pyrolytic graphite explanation
Mar 23, 2024
Replies
9
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2K
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Can Electromagnetic Levitation Make an Entire Apparatus Go Skyward?
Mar 23, 2024
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3
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180
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Can a permeable but non-magnetic rotor be used in an electric motor?
Mar 22, 2024
Replies
18
Views
343
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Effect of Fringe Fields for a Bending (Dipole) Magnet on Field Integral?
Mar 22, 2024
Replies
0
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138
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Why Do Some Theorists Claim Cosmic Inflation Dilutes Magnetic Monopoles?
Mar 19, 2024
Replies
5
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292
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"Strange contradiction" that Maxwell found and resolved
Mar 18, 2024
Replies
7
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266
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An electrolytic capacitor charges by itself?
Mar 13, 2024
Replies
3
Views
1K
I
How Does a Magnetic Repulsion Machine Work?
Mar 9, 2024
Replies
5
Views
342
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Resonant cavity with non-resonant dielectric
Mar 8, 2024
Replies
10
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480
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Physical approximation to inverse square law using magnet(s)
Mar 5, 2024
Replies
12
Views
407
I
How large is the volume of a photon interacting with matter?
Mar 4, 2024
Replies
15
Views
540
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Maxwell's equations in the presence of matter -- Derivation
Feb 25, 2024
Replies
1
Views
390
A
Finding potential of a dipole outside of a sphere
Feb 25, 2024
Replies
2
Views
320
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Charging Capacitor with one terminal grounded
Feb 22, 2024
Replies
16
Views
596
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Magnetic field produced by an electric current
Feb 22, 2024
Replies
5
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328
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Work done by electric field of an irregularly shaped conductor
Feb 16, 2024
Replies
3
Views
504
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How can scalars like voltage, impedance, etc. be added like vectors?
Feb 14, 2024
Replies
17
Views
529
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Mutual inductance in a transformer
Feb 6, 2024
Replies
16
Views
1K
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How to use geometrical symmetries -- general advice? (Vector potential)
Feb 6, 2024
Replies
2
Views
307
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Reason for Opposite Signs for Terms in Faraday's Law and Ampere's Law
Feb 6, 2024
Replies
15
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749
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Quadrupole moment tensor calculation for ellipsoid
Feb 2, 2024
Replies
3
Views
355
I
Mutual inductance of bifilar winding, vs transmission line parameter
Jan 31, 2024
Replies
4
Views
310
I
Where is the lost energy in this example?
Jan 30, 2024
Replies
10
Views
625
Inducing EMF Through a Coil: Understanding Flux
Jan 29, 2024
6
Replies
191
Views
14K
I
Work to move a point charge from infinity to the centre of a charge distribution
Jan 26, 2024
Replies
4
Views
447
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Conservation of charge in the Universe
Jan 25, 2024
Replies
24
Views
2K
I
How do we know that both plates of a capacitor have the same charge?
Jan 24, 2024
Replies
8
Views
1K
B
Single phase induction motor Torque under increased frequency and Same Current
Jan 23, 2024
Replies
2
Views
428
I
Do the plates of the capacitor exert a force on each other?
Jan 23, 2024
Replies
21
Views
647
B
Understanding magnetic flux change during the falling of magnet
Jan 20, 2024
Replies
1
Views
370
B
Changing magnetic polarity of an electromagnet
Jan 20, 2024
Replies
10
Views
553
I
Understanding dissipation of energy in a resistor through the Drude model
Jan 20, 2024
Replies
1
Views
974
I
Question about the current through a strong insulator
Jan 16, 2024
Replies
2
Views
411
B
LC resonance with high Q factor, Inductor with non magnetic core
Jan 15, 2024
Replies
4
Views
433
B
Inductive Reactance of Solenoid with Solid Metal Core With respect to frquency
Jan 14, 2024
Replies
5
Views
494
I
Question about Field Strength of Solenoid Positioned Near a Magnet
Jan 14, 2024
Replies
9
Views
469
I
Resistance and specific resistance relationships
Jan 11, 2024
Replies
16
Views
672
B
What's the difference between these two curves for AC Generator?
Jan 10, 2024
Replies
11
Views
542
A
Ponderomotive force and conservation of momentum
Jan 10, 2024
Replies
1
Views
366
I
Capacitor connected to voltage source, vary plate separation
Jan 9, 2024
Replies
9
Views
513
I
Structural difference between soft and hard ferromagnets
Jan 8, 2024
Replies
4
Views
615
I
Do electric currents depend on the frame of reference?
Jan 7, 2024
Replies
5
Views
431
I
Simple electromagnetic wave including delay
Jan 7, 2024
Replies
2
Views
403
B
Current-carrying coil and solenoid
Jan 6, 2024
Replies
3
Views
438
I
Generating Divergence Equation In Cylindrical Coordinates
Jan 5, 2024
Replies
3
Views
518
I
Is this solenoid / permanent magnet configuration possible?
Jan 2, 2024
Replies
5
Views
460
B
Can I use this method to charge a metal sphere?
Dec 26, 2023
Replies
9
Views
559
I
Alternating current in a perfect conductor
Dec 26, 2023
Replies
11
Views
776
I
What causes the unexpected annihilation point in the Magic-Tee configuration?
Dec 19, 2023
Replies
15
Views
700
I
Problems in classical electrodynamics: Only for point-like particles?
Dec 17, 2023
Replies
1
Views
458
I
Electrical breakdown in air in the presence of a single charge
Dec 16, 2023
Replies
3
Views
553
A
Visualising visible light Fluorescence
Dec 13, 2023
Replies
6
Views
574
I
Light intensity required to shine a light through an opaque object
Dec 12, 2023
Replies
22
Views
1K
B
Definition of ground potential in infinite sheet charge distributions
Dec 10, 2023
Replies
11
Views
868
A
Proving an equation in a book about Periodic Structures
Dec 7, 2023
Replies
6
Views
954
B
Symmetry regarding induced potentials?
Dec 7, 2023
Replies
4
Views
545
I
What is the ideal fluid and setup for observing Magnetohydrodynamics?
Dec 6, 2023
Replies
1
Views
527
B
Electromagnetic radiation interacting with a magnetic field
Dec 2, 2023
Replies
24
Views
1K
I
Permanent Magnetic Dipole in an electromagnetic field
Nov 29, 2023
Replies
2
Views
596
B
Is the Direction of Magnetic Fields Truly Conventional?
Nov 29, 2023
Replies
6
Views
647
A
Magnetization and magnet poles
Nov 23, 2023
Replies
10
Views
749
I
How to Measure the Energy of an Electromagnetic Wave?
Nov 23, 2023
Replies
4
Views
931
I
Magnetic field as result of length contraction
Nov 18, 2023
Replies
17
Views
1K
I
Which law defines the AC inducing voltage in the inductor?
Nov 18, 2023
Replies
25
Views
1K
I
Current through U-wire (rail gun): Violation of (naive) conservation of momentum?
Nov 15, 2023
2
Replies
61
Views
2K
A
Identifying Magnet Grade for FEMM Simulation: Neodymium Cylinder Magnets
Nov 14, 2023
Replies
5
Views
811
A
Electric field of infinite sheet with time dependent charge
Nov 12, 2023
Replies
22
Views
882
I
What causes skin effect in AC currents?
Nov 9, 2023
Replies
2
Views
684
B
Measuring electric field vs magnetic field
Nov 8, 2023
Replies
8
Views
879
I
Does B=0 at points out of the plane containing and normal to a point current I?
Nov 8, 2023
Replies
8
Views
684
I
Geometry of Magnetic field lines as they approach a magnet pole?
Nov 8, 2023
Replies
28
Views
1K
I
When to properly use "voltage"
Nov 6, 2023
Replies
25
Views
1K
I
Railgun: Significant magnetic field where projectile is?
Nov 4, 2023
Replies
8
Views
760
B
Why can only the electric field (E) be measured?
Nov 4, 2023
Replies
23
Views
1K
I
Circular loop in uniform magnetic field
Nov 3, 2023
Replies
11
Views
782
I
Is the magnetic field from this current rotationally symmetric?
Oct 30, 2023
Replies
12
Views
799
A
General solution to Laplacian in cylindrical coordinates
Oct 30, 2023
Replies
13
Views
863
I
Do you think emissivity of air makes sense?
Oct 27, 2023
Replies
16
Views
2K
I
Electricity and Magnetism: Verifying the Inverse Square Law
Oct 21, 2023
Replies
3
Views
788
I
Can the Last Maxwell's Equation Explain Polarization of a Wire's Insulator?
Oct 21, 2023
Replies
3
Views
811
B
Understanding the Relationship Between i*cos and sin in Circuit Analysis
Oct 21, 2023
2
Replies
39
Views
2K
I
Inductance Measurement: Error Due To Series Resistance
Oct 18, 2023
Replies
6
Views
774
I
Ampere's Law For Static Magnetic Field
Oct 8, 2023
Replies
5
Views
986
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