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Guiding center motion of charged particles in EM field
Oct 2, 2023
Replies
0
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682
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Designing a current sensor for 50mA up to several dozen Amps
Sep 30, 2023
Replies
17
Views
1K
I
Power Loss Due to An Eddy Current
Sep 26, 2023
Replies
3
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1K
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Is the Poynting Vector Field the Only Factor in Energy Flow in Circuits?
Sep 21, 2023
Replies
14
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1K
A
Green's function for problems involving linear isotropic media
Sep 21, 2023
Replies
3
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732
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How is Potential Difference Created across a Resistor?
Sep 20, 2023
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4
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1K
I
Question about Coloumb's law notation and math in two different textbooks
Sep 18, 2023
Replies
4
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869
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Faraday cage continuity question
Sep 11, 2023
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11
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958
A
Why is "method of image current" valid in magnetostatics?
Sep 9, 2023
Replies
4
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866
I
Why are Maxwell's equations and the Lorentz force "so different"
Sep 4, 2023
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7
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1K
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Rate of work done by F on charge carrier with average velocity v
Aug 30, 2023
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6
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1K
I
Will insulation on electric power lines affect the flow of power?
Aug 27, 2023
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5
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1K
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Melting a nail with high currents
Aug 23, 2023
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3
Views
788
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Coulumb's Law at 1 light year distance
Aug 19, 2023
Replies
8
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1K
I
Resulting magnetic field due to the passage of an AC current
Aug 15, 2023
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27
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1K
Water bending with comb: but where do the electrons go?
Aug 14, 2023
2
Replies
35
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4K
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Help working on this example exam please
Aug 12, 2023
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8
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852
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An attempt to understand the associated variable conventions in circuits
Aug 9, 2023
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1
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823
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Is this example incorrect in Agawal's book on electric circuits?
Aug 9, 2023
Replies
3
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840
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Why is there a freedom to choose gauge in gauge transformation?
Aug 5, 2023
Replies
3
Views
865
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Magnetic Field Intensity At the Inductor's Air Gap (+Fringing Flux)
Aug 4, 2023
Replies
3
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821
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Questions about cancelation of induced EMF and minimizing eddy currents
Aug 3, 2023
Replies
4
Views
980
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Is the Rutherford model invalid due to a violation of Gauss's Law?
Jul 30, 2023
Replies
6
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914
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What is the capacitance between two points on three concentric shells?
Jul 27, 2023
Replies
3
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894
Magnetic field inside a solenoid
Jul 17, 2023
Replies
7
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3K
High dielectric strength insulator
Jul 16, 2023
Replies
3
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11K
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Magnetic field at a point along the solenoid's axis but outside the solenoid
Jul 15, 2023
Replies
5
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1K
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Calculation for proportional mechanical solenoid Force
Jul 15, 2023
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3
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1K
A
Why do we use covariant formulation in classical electrodynamics?
Jul 11, 2023
Replies
6
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940
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Any free MHD software recomended?
Jul 6, 2023
Replies
1
Views
803
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Hall effect -- is it always applicable?
Jul 1, 2023
Replies
7
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958
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Physics domain analysis of Voltage drop in series resistor
Jun 30, 2023
Replies
7
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1K
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Is capacitor energy the electrostatic energy of the whole system?
Jun 25, 2023
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9
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1K
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How is surface charge accumulated?
Jun 25, 2023
2
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36
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3K
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Power flow outside a wire - how close?
Jun 24, 2023
Replies
4
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1K
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Electromagnetic Absorption in the Ocean
Jun 22, 2023
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5
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946
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The vector math of relative motion of wire-loop & bar magnet
Jun 8, 2023
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1
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1K
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Dimensional analysis in the formula for gyration frequency
Jun 8, 2023
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6
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1K
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Do Electric field lines propagate by themselves away from a charge?
Jun 7, 2023
3
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73
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3K
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Why is a Dielectric slab ejected from the capacitor when energized?
Jun 7, 2023
Replies
10
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1K
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Electric arc length in relation to voltage
Jun 6, 2023
Replies
13
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1K
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Stored magnetic energy of solenoid
Jun 3, 2023
Replies
2
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928
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Help with Canonical Poisson Brackets & EM Field
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Replies
2
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845
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Basic Straight Line Permanent Magnet Accelerator
May 31, 2023
Replies
3
Views
1K
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Oscillating charged particles and E.M waves
May 29, 2023
Replies
9
Views
927
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Is total flux linkage λ=dΨ*Ienclosed/I or λ=N*Ψ?
May 29, 2023
Replies
2
Views
818
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Angular momentum associated with a current carrying circular wire
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9
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1K
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Magnetic field and generator power output
May 12, 2023
Replies
5
Views
1K
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Do valence electrons determine electrical conductivity?
May 10, 2023
Replies
1
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1K
Rubber soled slippers generating static electricity
Apr 27, 2023
2
Replies
60
Views
34K
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Electric potential and potential difference
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Replies
7
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1K
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Magnetism: Same Pole Repulsion & Heteropolar Attraction
Apr 25, 2023
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32
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1K
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EMF Radiation detected from TV
Apr 25, 2023
Replies
14
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2K
Insights
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12
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3K
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Can Conducting Current Through a Bar Magnet Cause Movement?
Apr 22, 2023
Replies
16
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1K
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Electric Field Shielding by Conducting Sheets
Apr 22, 2023
Replies
3
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989
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The Mystery of Magnet Rotations: An Unanswered Question
Apr 18, 2023
Replies
19
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1K
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Faraday's Nested Sphere Experiment
Apr 14, 2023
Replies
3
Views
925
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Calculating Fluke: Subtract A or R?
Apr 13, 2023
Replies
1
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737
Build an Efficient Electrostatic Generator: Tips, Tricks, and Resources
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Replies
10
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13K
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Which does more work: gravitation or electromagnetism?
Apr 11, 2023
Replies
4
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836
Calculating Magnetic Levitation Strength for a 1kg Object
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Replies
15
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15K
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Units of q in Electric Field Equation
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Replies
11
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1K
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Origin of the Earth's magnetic field
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Replies
8
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1K
I
Surface charge of neutral solids
Apr 7, 2023
Replies
3
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1K
A
Can the Magnetocaloric effect be used for heating liquids?
Apr 5, 2023
Replies
1
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722
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A math confusion in deriving the curl of magnetic field from Biot-Savart
Apr 3, 2023
Replies
1
Views
958
I
Proof of Q=CV for arbitrarily shaped capacitors
Apr 1, 2023
2
Replies
53
Views
4K
B
Magnetic Field & Particle Spin: Does It Matter?
Mar 31, 2023
Replies
5
Views
984
I
Question on the Lorentz force: Why is the force not F=q(v×B) = F=qv×qB
Mar 30, 2023
Replies
8
Views
1K
B
What is the principle of a magnet?
Mar 10, 2023
Replies
14
Views
1K
I
Can a pulse from a laser be treated as a Gaussian?
Mar 10, 2023
Replies
9
Views
982
I
Grounded Means Zero Electric Potential: Exploring the Method of Images
Mar 7, 2023
Replies
7
Views
1K
B
Confusing diagram of a rotating coil in a magnetic field
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Replies
4
Views
983
I
Question about orbital and spin magnetic dipole
Feb 27, 2023
Replies
2
Views
1K
I
4-Current vector potential transformation under Gauge fixing
Feb 19, 2023
Replies
5
Views
877
I
Planck's Impedance: Exploring the Mystery of a Fictional Measurement System
Feb 18, 2023
Replies
4
Views
994
I
Thomson Scattering -- elastic collisions conundrum
Feb 17, 2023
Replies
2
Views
705
I
Why do brushed DC motors only use commutators, and not slip rings?
Feb 17, 2023
Replies
5
Views
1K
I
Question regarding how to interpret dipole moment for bound charges
Feb 16, 2023
Replies
1
Views
1K
I
Question on Hall Effect and magnetic force
Feb 13, 2023
Replies
2
Views
867
I
A donut electromagnetic core comprises main section + movable section
Feb 11, 2023
Replies
33
Views
1K
I
The implications of symmetry + uniqueness in electromagnetism
Feb 10, 2023
Replies
1
Views
913
I
Are voltage and current waves in transmission lines an artifice?
Feb 8, 2023
Replies
6
Views
860
I
Do equipotential lines fall on the equiprobability contours?
Feb 8, 2023
Replies
1
Views
747
I
Meaning of "Static Electricity" and Physical Interpretation
Feb 5, 2023
Replies
20
Views
981
I
Behaviour of Magnetic Fields Underwater
Jan 30, 2023
Replies
2
Views
1K
B
Can lasers really cause explosions? Let's use a silly hypothetical to find out!
Jan 29, 2023
Replies
12
Views
1K
B
The historical war of currents in Mains Power Distribution: AC vs DC
Jan 29, 2023
Replies
7
Views
881
I
Speed of Electricity in Plate Capacitor & Cable
Jan 24, 2023
Replies
18
Views
1K
I
Electric field in a rotating frame
Jan 21, 2023
Replies
1
Views
876
Electric field inside a conductor
Jan 20, 2023
Replies
13
Views
3K
I
Asking about something that I read on electromagnetic force
Jan 17, 2023
Replies
1
Views
786
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Coil Around A Tube - Iron Cylinder Inside Tube - How Many Turns Needed?
Jan 11, 2023
Replies
27
Views
1K
A
Why electromagnetic tensor (Faraday 2-form) is exact? (and not closed)
Jan 10, 2023
Replies
3
Views
967
Is the mass of the electron constant?
Dec 26, 2022
Replies
32
Views
7K
I
Is there such a thing as an active diamagnet?
Dec 24, 2022
Replies
2
Views
626
B
Decompose the E field into conservative and non-conservative parts
Dec 17, 2022
2
Replies
64
Views
3K
PPMT, Magnetic Flux Switch, electro-permanent magnet generator
Dec 12, 2022
Replies
8
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2K
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Questions about a Conductor in an Electric Field
Dec 11, 2022
Replies
13
Views
1K
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