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How to derive Lienard-Wiechert potential from Maxwell's equation?
Jun 30, 2009
Replies
4
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4K
Relationship between electric field intensity and potential
Jun 30, 2009
Replies
6
Views
42K
Maximum allowable current in a 12-gauge aluminum wire
Jun 30, 2009
Replies
3
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12K
Can all electromagnetic waves carry information?
Jun 30, 2009
Replies
3
Views
7K
Dielectrics Table: Reccomended Functions, Packages, Values & Ranges
Jun 30, 2009
Replies
1
Views
2K
Electric Potential Earth and Sun?
Jun 29, 2009
Replies
9
Views
4K
Electron Flow: Positive to Negative?
Jun 29, 2009
Replies
6
Views
2K
There are voltage drops based on Q, dQ/dt, and d(dQ/dt); what about d(d(dQ/dt))?
Jun 28, 2009
Replies
1
Views
2K
Charging an Insulator: Explained
Jun 28, 2009
Replies
6
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3K
Heated water in closed cylinder with electricity
Jun 28, 2009
Replies
2
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2K
Electricity generation through crystals
Jun 28, 2009
Replies
10
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25K
Electric field of infinite plane
Jun 28, 2009
Replies
9
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4K
Electricity Speeds: How Fast Does It Move?
Jun 27, 2009
Replies
9
Views
5K
Finding the polarity of fridge magnets
Jun 27, 2009
Replies
6
Views
7K
Magnetic field of moving charged particle
Jun 26, 2009
Replies
2
Views
7K
Why potential of an infinite line of charge not equals to zero at r = infinite
Jun 26, 2009
Replies
17
Views
19K
When does gravitational force = electromagnetic force?
Jun 26, 2009
Replies
6
Views
7K
Voltage and the concept of work
Jun 26, 2009
Replies
4
Views
2K
Maxwell's Demon: Chance of Violating the 2nd Law?
Jun 26, 2009
Replies
7
Views
2K
Reading current through a capacitor
Jun 25, 2009
Replies
3
Views
3K
How would you calculate air resistance from a projectile
Jun 24, 2009
Replies
1
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3K
What is Voltage? Elaborated Question Explained
Jun 24, 2009
Replies
32
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6K
Questions on ferromagnetism and attraction
Jun 24, 2009
Replies
1
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3K
Does light exhibit dispersion in a vacuum?
Jun 24, 2009
Replies
1
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3K
Force on a Permanent Magnet Falling through a Coil
Jun 24, 2009
Replies
3
Views
6K
Capacitance of Non-parallel plate capacitor
Jun 23, 2009
Replies
11
Views
12K
COMSOL electrostatics question
Jun 23, 2009
Replies
1
Views
4K
How Should Frequency X and Y Be Described in SCENAR Therapy?
Jun 22, 2009
Replies
6
Views
3K
Dangers of high current/voltage?
Jun 22, 2009
Replies
3
Views
12K
Why does negative charge reduce the potential of a metal plate in a capacitor?
Jun 22, 2009
Replies
2
Views
2K
Why does the induced emf in an inductor increase when the circuit is opened?
Jun 21, 2009
Replies
7
Views
2K
Charge density and electromagnetics
Jun 20, 2009
Replies
4
Views
3K
Rolling Resistance: A Trickier Term Than You Might Think
Jun 20, 2009
Replies
11
Views
9K
Numerical methods in magnetostatics
Jun 19, 2009
Replies
2
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2K
Harm of discharge of thunder in village is worse than cities?
Jun 19, 2009
Replies
2
Views
2K
How do magnetic fields provide thermal insulation
Jun 18, 2009
Replies
6
Views
7K
How many electrons in an orbital?
Jun 16, 2009
Replies
2
Views
3K
Electromagnetic wave constituents
Jun 16, 2009
Replies
4
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2K
Basic physics, interactions between multiple electrons
Jun 16, 2009
Replies
3
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2K
A flaw in the wavelenght/frequency formula? FTW?
Jun 15, 2009
Replies
2
Views
2K
Is it possible to create a negative charge in fabric?
Jun 15, 2009
Replies
1
Views
3K
Droplet's motion in electric field and gravitational field?
Jun 15, 2009
Replies
2
Views
3K
When would a circuit be nonohmic ?
Jun 14, 2009
Replies
3
Views
2K
Does Magnetic Flux Bend When Two Magnets are Taped Together?
Jun 14, 2009
Replies
9
Views
5K
Can metal shavings orbit around a wire in a magnetic field-free room?
Jun 14, 2009
Replies
3
Views
3K
Uncovering Heinrich Hertz: The First to Generate EM Waves in a Lab
Jun 14, 2009
Replies
2
Views
2K
Capacitance of a cylindric capacitor (only a piece)
Jun 13, 2009
Replies
3
Views
2K
Difference between an inductor and a solenoid
Jun 13, 2009
Replies
3
Views
18K
How Does Glitter Adhere to Plastic in Automated Crafting Machines?
Jun 13, 2009
Replies
6
Views
3K
Why is the electrodynamic Lagrangian E^2 - B^2?
Jun 13, 2009
Replies
2
Views
2K
I'm too uneducated to disprove my magnetic mechanical idea.
Jun 13, 2009
Replies
4
Views
2K
Check my understanding of voltage please
Jun 12, 2009
Replies
2
Views
2K
Can Charges Remain Forever on Insulated Objects?
Jun 11, 2009
Replies
1
Views
2K
Magnetic field in an AC Solenoid Coil
Jun 11, 2009
Replies
11
Views
24K
Magnetism, Gravity and Critical Momentum
Jun 11, 2009
Replies
1
Views
2K
How does changing flux produce a field.
Jun 11, 2009
Replies
6
Views
6K
Outdoor electronic soundproofing
Jun 10, 2009
Replies
4
Views
10K
PLEASE HELP. VB particle sim. Rate of neutrilization of charge
Jun 10, 2009
Replies
1
Views
2K
Photoelectric Effect and Temperature.
Jun 10, 2009
Replies
5
Views
9K
Electron/positron annihilation/momentum
Jun 9, 2009
Replies
48
Views
13K
Gravitation and electromagnetism is unified by Kaluza-Klein theory
Jun 9, 2009
Replies
1
Views
2K
Any deep cause of magnetic field
Jun 9, 2009
Replies
6
Views
3K
Magnetic Forces and Work: An Explanation
Jun 9, 2009
Replies
34
Views
11K
Why do electrons have more kinetic energy when closer to the nucleus?
Jun 8, 2009
Replies
7
Views
25K
Power Output in Torque and Angular Velocity
Jun 8, 2009
Replies
1
Views
2K
Metal sphere torn apart in electric field
Jun 8, 2009
Replies
6
Views
3K
Can magnetic dipoles have potential energy?
Jun 7, 2009
Replies
1
Views
2K
Interesting Magnetix Set Question
Jun 6, 2009
Replies
4
Views
3K
Magnetic Permeability: Definition & Meaning
Jun 6, 2009
Replies
1
Views
4K
How Do Electrostatic Fields Differ Between 2D and 3D Dimensions?
Jun 6, 2009
Replies
2
Views
3K
Charge is Relative: Polarity in an Electron System
Jun 5, 2009
Replies
14
Views
3K
A confusion about Energy and Capacitors
Jun 5, 2009
Replies
7
Views
3K
What is the maximum charge that can be put on a charged aluminum sphere?
Jun 4, 2009
Replies
2
Views
2K
How Do We Distinguish Poles in Liquid State Magnets?
Jun 4, 2009
Replies
4
Views
2K
Welding Magnets: Does Like Poles Repel?
Jun 4, 2009
Replies
8
Views
6K
What Are the Magnetic Lines of Force and Why Do They Curve?
Jun 4, 2009
Replies
8
Views
2K
Does the gravitational field have energy like the electric field ?
Jun 3, 2009
Replies
34
Views
11K
Kinetic Energy and Electron Flow Speed
Jun 3, 2009
Replies
4
Views
6K
Bunch of electrons - is it visible?
Jun 3, 2009
Replies
9
Views
4K
Ampere's law and biot-savort law
Jun 1, 2009
Replies
1
Views
2K
Understanding Charge: What are Electrons and Protons?
May 30, 2009
Replies
15
Views
3K
Dielectric Constant K & Plate Charge Density
May 30, 2009
Replies
9
Views
13K
Demagnetizing Field Explained - What is It & How?
May 30, 2009
Replies
2
Views
6K
Thought experiment with static electricity
May 29, 2009
Replies
1
Views
2K
What is the explanation for the alternating current of 60Hz in household supply?
May 29, 2009
Replies
18
Views
5K
Does the movement of protons create a magnetic field?
May 29, 2009
Replies
6
Views
18K
Is Maxwell's Electrodynamic Theory Violated?
May 29, 2009
Replies
2
Views
3K
Frequency higher then plasma frequency
May 29, 2009
Replies
3
Views
4K
Can Alnico Magnets Undergo Pole Reversal with a Magnetizer?
May 28, 2009
Replies
1
Views
3K
Force on point magnetic dipole
May 28, 2009
Replies
5
Views
3K
How to find charge given voltage?
May 28, 2009
Replies
17
Views
26K
Higher dielectric constant : better insulator
May 28, 2009
Replies
3
Views
22K
How does frequency affect energy delivery in sine wave generators?
May 27, 2009
Replies
4
Views
7K
Force Magnetic Dipole: Electric Current vs Magnetic Pole Model
May 26, 2009
Replies
7
Views
7K
How Does Temperature Affect Electromagnetic Waves?
May 26, 2009
Replies
1
Views
3K
Alternating Current. (When can we see it?)
May 25, 2009
Replies
3
Views
2K
Can I calculate magnetic force of a magnet?
May 25, 2009
Replies
3
Views
15K
Why Do Parallel Wires with Currents Attract or Repel Each Other?
May 25, 2009
Replies
10
Views
22K
Calculating Current Through a Parallel Resistor Circuit: Help Needed
May 24, 2009
Replies
3
Views
3K
Why do fluids expand with heat? explaining covection currents
May 24, 2009
Replies
9
Views
6K
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