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Graduate Can the Surface Integral of a Zero Divergence Electric Field Be Non-Zero?

Gza
Aug 12, 2004 · Replies 12 · Aug 13, 2004

Replies: 12

High School How can I calculate the mechanical resistance of a generator for my DIY project?

bonna
Aug 12, 2004 · Replies 1 · Aug 12, 2004

Replies: 1

Graduate Accelerating charged particles and FOR

raymes_k
Aug 7, 2004 · Replies 5 · Aug 11, 2004

Replies: 5

Graduate Electrical Engine - Something Doesn't Add Up

alpha_wolf
Aug 4, 2004 · Replies 6 · Aug 7, 2004

Replies: 6

Graduate Adding a Phase Element to Biot Savart Law

lechko
Jul 28, 2004 · Replies 2 · Aug 7, 2004

Replies: 2

High School How does a permanent magnet lift iron filings

sridhar_n
Jun 16, 2004 · Replies 31 · Aug 6, 2004

2

Replies: 31

Undergrad Mastering Classical Physics: Solving a Square Array of Charges Problem

ggups
Aug 5, 2004 · Replies 8 · Aug 5, 2004

Replies: 8

High School What determines the colour? Frequency or wavelenght?

darkar
Jul 25, 2004 · Replies 5 · Aug 4, 2004

Replies: 5

Undergrad What are the limits of the electromagnetic spectrum?

µ³
Aug 3, 2004 · Replies 6 · Aug 4, 2004

Replies: 6

Undergrad Calculating Electric Field with Point Charge and Hollow Sphere

jimbo007
Jul 30, 2004 · Replies 10 · Aug 1, 2004

Replies: 10

High School How do EMPs work and how can you make one?

Maltaethirion
Jul 30, 2004 · Replies 4 · Aug 1, 2004

Replies: 4

Inventing Wireless Electrical Power: My Dad and Nikola Tesla

Nenad
Jul 29, 2004 · Replies 4 · Jul 30, 2004

Replies: 4

High School Earths magnetisim is based on the rotation of the earths core

B166ER
Jul 27, 2004 · Replies 20 · Jul 29, 2004

Replies: 20

Graduate Magnetic field of semicurcular current

woodysooner
Jul 26, 2004 · Replies 8 · Jul 28, 2004

Replies: 8

Graduate What exactly makes opposites attract and likes repel?

urtalkinstupid
Jul 25, 2004 · Replies 11 · Jul 28, 2004

Replies: 11

Graduate Higgs particle and electromagnetism

kurious
Jul 23, 2004 · Replies 23 · Jul 27, 2004

Replies: 23

Graduate Question: Electromagnetism, Weak-force, Gravity, Strong Nuclear force ?

Stellar Tourist
Jul 18, 2004 · Replies 11 · Jul 26, 2004

Replies: 11

Graduate Is Gravity Really Electric in Nature?

kurious
Jul 23, 2004 · Replies 17 · Jul 24, 2004

Replies: 17

Graduate How can I create a perpetual motion machine using magnets and electromagnets?

JohnTownsendUCF
Jul 21, 2004 · Replies 8 · Jul 24, 2004

Replies: 8

Graduate Solving the Intriguing EM "Paradox

alfraser
Jul 20, 2004 · Replies 11 · Jul 24, 2004

Replies: 11

Undergrad Having a bit of trouble with Electric currents and resistance

Divergent13
Jul 21, 2004 · Replies 6 · Jul 23, 2004

Replies: 6

High School What Are the Different Strengths of Magnets and How Are They Measured?

stupidlittlekid
Jul 18, 2004 · Replies 18 · Jul 21, 2004

Replies: 18

Undergrad Speed of the magnetic field around a wire.

grounded
Jul 18, 2004 · Replies 13 · Jul 21, 2004

Replies: 13

High School What Are Magnetic Fields Made Of?

mee
Jul 15, 2004 · Replies 11 · Jul 21, 2004

Replies: 11

Graduate Capacitance of eccentrical cylinders

Gagson
Jul 19, 2004 · Replies 5 · Jul 20, 2004

Replies: 5

Graduate Are Gravity Waves Included in the Electromagnetic Spectrum?

Jeebus
Jul 20, 2004 · Replies 1 · Jul 20, 2004

Replies: 1

Graduate Spherical capacitor energy problem

AgPIper
Jul 19, 2004 · Replies 2 · Jul 20, 2004

Replies: 2

Graduate Questioning EM Waves, Synchrotron Emission & Blackbody Radiation

Moose352
Jul 18, 2004 · Replies 3 · Jul 20, 2004

Replies: 3

High School What Is a Volt? Explaining Watt & Energy Measurement

bayan
Jul 6, 2004 · Replies 52 · Jul 18, 2004

2

Replies: 52

Undergrad Application of Coloumb's Law to electroscope

Theelectricchild
Jun 30, 2004 · Replies 6 · Jul 17, 2004

Replies: 6

Undergrad Question about this situation with two point charges +Q and -Q

Theelectricchild
Jun 28, 2004 · Replies 7 · Jul 17, 2004

Replies: 7

Undergrad Physics of capacitors over frequency

PMASwork
Jul 14, 2004 · Replies 3 · Jul 16, 2004

Replies: 3

Graduate Is Electromagnetic Theory Incomplete Without Magnetic Monopoles?

Antonio Lao
Jul 8, 2004 · Replies 20 · Jul 14, 2004

Replies: 20

Undergrad How Do Newtons Relate to Watt-hours in Energy Conversion?

alanb98105
Jul 9, 2004 · Replies 11 · Jul 14, 2004

Replies: 11

Undergrad Several Questions on Electric Potential

Divergent13
Jul 13, 2004 · Replies 2 · Jul 14, 2004

Replies: 2

Graduate Electric field of two polar molecules

enkar
Jun 29, 2004 · Replies 13 · Jul 13, 2004

Replies: 13

Graduate How Do Phonons Interact with Dielectrics and Non-Monocrystalline Materials?

androz
Jul 12, 2004 · Replies 7 · Jul 13, 2004

Replies: 7

High School The Truth: The Relationship Between Magnets and Free Energy

bozo the clown
Jul 13, 2004 · Replies 6 · Jul 13, 2004

Replies: 6

Undergrad What is the difference btw 2 loops?

prodigy180
Jul 12, 2004 · Replies 3 · Jul 12, 2004

Replies: 3

Undergrad Solving Torque on a Rotating Loop in a Magnetic Field

prodigy180
Jul 12, 2004 · Replies 3 · Jul 12, 2004

Replies: 3

Undergrad The direction of the electric field at point P is +x direction

imationrouter03
Jul 10, 2004 · Replies 2 · Jul 10, 2004

Replies: 2

Undergrad What is the Nature of Magnetism?

bozo the clown
Jun 25, 2004 · Replies 35 · Jul 10, 2004

2

Replies: 35

Undergrad Why Does a Wire Move Perpendicular to a Magnetic Field?

pray_for_mojo
Jul 5, 2004 · Replies 11 · Jul 6, 2004

Replies: 11

Undergrad Why do accelerated charges emit e/m radiation?

sor2char
Jul 2, 2004 · Replies 1 · Jul 2, 2004

Replies: 1

Graduate Vacuum theory; mass and charge

elas
May 26, 2004 · Replies 20 · Jul 1, 2004

Replies: 20

Undergrad Creating Electromagnetic Waves with an Electromagnet: Fact or Fiction?

relativelyslow
Jun 23, 2004 · Replies 39 · Jul 1, 2004

2

Replies: 39

High School A-Level Physics: Explaining Resistance to a 15-Year-Old

Lokolo
Jun 16, 2004 · Replies 15 · Jun 29, 2004

Replies: 15

Graduate What is the current understanding of time in modern physics?

SanguineHorizon
Jun 21, 2004 · Replies 47 · Jun 29, 2004

2

Replies: 47

High School Can a cellular phone demagnetize a credit card?

Feynmanfan
Jun 25, 2004 · Replies 4 · Jun 27, 2004

Replies: 4

Undergrad Deriving the Transformer Equations: An Algebraic Proof

Cheman
Jun 11, 2004 · Replies 13 · Jun 27, 2004

Replies: 13

High School Are magnetic lines of force real ?

smithpa9
Jun 9, 2004 · Replies 26 · Jun 23, 2004

Replies: 26

Undergrad Kirchhoff's 2nd law wrongly used or not? Lewin vs all college books

Feynmanfan
May 4, 2004 · Replies 6 · Jun 23, 2004

Replies: 6

Graduate Electrostatic Field Energy of Electron

Gza
Jun 5, 2004 · Replies 13 · Jun 22, 2004

Replies: 13

Undergrad Faraday's Law and magnetic flux

Gza
Jun 20, 2004 · Replies 5 · Jun 22, 2004

Replies: 5

High School General Electricity: Understand the Basics for High School Exam

Alkatran
Jun 20, 2004 · Replies 6 · Jun 21, 2004

Replies: 6

At what frequency is it best to wake a person up?

Lokolo
Jun 21, 2004 · Replies 2 · Jun 21, 2004

Replies: 2

High School How does the magnetic field lift iron objects?

sridhar_n
Jun 16, 2004 · Replies 17 · Jun 21, 2004

Replies: 17

High School Why do electrons flow in a wire?

aychamo
Jun 10, 2004 · Replies 44 · Jun 20, 2004

2

Replies: 44

Undergrad Fundamental Frequency of Stretched Strings & Closed Pipes

cutesoqq
Jun 20, 2004 · Replies 2 · Jun 20, 2004

Replies: 2

Graduate Solving Dipole in a Sphere: Charge Distribution on Sphere's Surface

Jonas Rist
Jun 12, 2004 · Replies 6 · Jun 16, 2004

Replies: 6

Graduate Can Oscillating Current Loops Produce Equal and Opposite Forces?

ZigsMcKenzie
Jun 13, 2004 · Replies 8 · Jun 13, 2004

Replies: 8

Graduate Why is a magneto-dynamo electro - magnetic system self - sustaining?

S = k log w
Nov 19, 2003 · Replies 6 · Jun 12, 2004

Replies: 6

High School Some questions about photoelectric effect

Fuego
Jun 11, 2004 · Replies 6 · Jun 12, 2004

Replies: 6

Undergrad Generating Current in an Electric Field

BMan
Jun 7, 2004 · Replies 14 · Jun 11, 2004

Replies: 14

High School Series/Parallel Circuit: Identifying Resistor Placement

Leslie
May 19, 2004 · Replies 5 · Jun 10, 2004

Replies: 5

Graduate So, what are the properties of space at the Planck length?

PFanalog57
Jun 10, 2004 · Replies 4 · Jun 10, 2004

Replies: 4

High School Simple Space Travel: Can Magnets Help?

Mistic
Jun 9, 2004 · Replies 1 · Jun 10, 2004

Replies: 1

Graduate Fundamental Nature of Space Charges

Antonio Lao
Jun 8, 2004 · Replies 4 · Jun 9, 2004

Replies: 4

High School What Are the Key Factors Influencing Current and Resistance in DC Circuits?

DoctorReynaldo
Jun 2, 2004 · Replies 15 · Jun 8, 2004

Replies: 15

Graduate Does Temperature Affect Magnetic Field Strength in Cosmic Phenomena?

Antonio Lao
Jun 7, 2004 · Replies 2 · Jun 8, 2004

Replies: 2

Undergrad Coast down test for Rolling Resistance

steven mosher
May 25, 2004 · Replies 7 · Jun 7, 2004

Replies: 7

High School Can sunlight cause electrons to be emitted from a metal surface?

expscv
Jun 7, 2004 · Replies 1 · Jun 7, 2004

Replies: 1

Undergrad How Do You Interpret Kirchhoff's Law: Integral or Algebraic Sum?

brentd49
Jun 6, 2004 · Replies 2 · Jun 6, 2004

Replies: 2

Undergrad Magnetic Flux Density and the Relationship to Force and Units

maccaman
Jun 4, 2004 · Replies 2 · Jun 5, 2004

Replies: 2

Graduate How Are Maxwell's Equations Derived in Electromagnetism?

nickl382
May 12, 2004 · Replies 3 · Jun 5, 2004

Replies: 3

Graduate The universe contains only one electron?

lvlastermind
Jun 3, 2004 · Replies 9 · Jun 4, 2004

Replies: 9

Graduate Electrodynamics i need some help

ggups
Jun 4, 2004 · Replies 1 · Jun 4, 2004

Replies: 1

High School Mystery of the Magnetic Field: "Because

DarkAnt
Jun 3, 2004 · Replies 6 · Jun 4, 2004

Replies: 6

High School Lenz's Law: Understanding A-level Physics Problem

padraig
Jun 3, 2004 · Replies 1 · Jun 3, 2004

Replies: 1

Where Can I Find Comprehensive Electromagnetism Notes Online?

Knutz
May 30, 2004 · Replies 3 · Jun 1, 2004

Replies: 3

High School OHM's Law Lab: Proper Meter Placement

DoctorReynaldo
May 30, 2004 · Replies 11 · May 31, 2004

Replies: 11

Graduate Material Permeability & Magnetization: High-Field Induction

drag
May 27, 2004 · Replies 6 · May 30, 2004

Replies: 6

Undergrad Deriving Electric Field Independence on Negligible Separation

spikelau
May 28, 2004 · Replies 2 · May 28, 2004

Replies: 2

Undergrad What's the meaning of amplitude in EM wave?

particle
May 25, 2004 · Replies 3 · May 26, 2004

Replies: 3

Graduate What is the true relationship between the charges of fundamental particles?

elas
May 23, 2004 · Replies 4 · May 26, 2004

Replies: 4

Undergrad Can UV Light Cause Electrons to Eject from a Metal Surface?

raymes_k
May 22, 2004 · Replies 7 · May 25, 2004

Replies: 7

Graduate How do electromagnetic waves propagate ?

McQueen
May 23, 2004 · Replies 6 · May 24, 2004

Replies: 6

Undergrad Why Current is Chosen as Base Unit & 2E-7 N/m Force?

darkar
May 21, 2004 · Replies 6 · May 23, 2004

Replies: 6

Graduate Is the Total Electric Charge of the Universe Zero?

Antonio Lao
May 22, 2004 · Replies 2 · May 22, 2004

Replies: 2

Undergrad Have you heard of the Electron Cascade Effect?

Jdo300
May 14, 2004 · Replies 9 · May 21, 2004

Replies: 9

Undergrad Possible for electrons to escape this speed limit.

Ebolamonk3y
May 19, 2004 · Replies 5 · May 20, 2004

Replies: 5

High School What causes certain rock to be naturally magnetized?

syano
May 19, 2004 · Replies 3 · May 20, 2004

Replies: 3

Graduate Expansion of Electromagnetic waves

Feynmanfan
May 19, 2004 · Replies 5 · May 20, 2004

Replies: 5

High School Electricity and the shortest path

ShawnD
May 14, 2004 · Replies 14 · May 16, 2004

Replies: 14

Graduate EM penetration of physical objects

raymes_k
May 12, 2004 · Replies 9 · May 13, 2004

Replies: 9

Undergrad Is this switch safe for powering air pumps and power heads in an aquarium?

mnjlp27
May 8, 2004 · Replies 1 · May 12, 2004

Replies: 1

Graduate Ultra-high density magnetic fields.

pallidin
May 9, 2004 · Replies 4 · May 11, 2004

Replies: 4

Undergrad Einstein and the photoelectric effect

broegger
May 11, 2004 · Replies 4 · May 11, 2004

Replies: 4

Undergrad Grappling with a Magnetism question

sharpstones
May 9, 2004 · Replies 2 · May 9, 2004

Replies: 2

Undergrad Air Resistance and projectile motion

mpm166
May 9, 2004 · Replies 1 · May 9, 2004

Replies: 1

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