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High School Why do fluids expand with heat? explaining covection currents

vorcil
May 23, 2009 · Replies 9 · May 24, 2009

Replies: 9

Undergrad Electron oscillation frequency, what pushes them away?

Thierry12
May 6, 2009 · Replies 18 · May 23, 2009

Replies: 18

Graduate Maximun wave frequency calculation

owlal85
May 22, 2009 · Replies 1 · May 23, 2009

Replies: 1

Graduate Temporarily communicating vessel isolated hydroelectric power plant

epozah
May 21, 2009 · Replies 1 · May 22, 2009

Replies: 1

High School Solving the Mystery of Dim Light Bulbs in Series Circuits

peanut Bond
May 20, 2009 · Replies 9 · May 21, 2009

Replies: 9

Undergrad Effect of pressure on electrolysis of water

starkind
Aug 6, 2007 · Replies 6 · May 21, 2009

Replies: 6

High School Understanding Capacitors in RC Cars - Demson

Demson
May 19, 2009 · Replies 3 · May 21, 2009

Replies: 3

Graduate Canceling Electromagnetic Fields

RoKo
Apr 26, 2009 · Replies 11 · May 21, 2009

Replies: 11

Undergrad Electromagnet Materials: Can They Stay Magnetized After Current is Switched Off?

jonnyk
May 21, 2009 · Replies 2 · May 21, 2009

Replies: 2

Undergrad Varied Electrical Potential Difference with Dielectric.

sleventh
May 19, 2009 · Replies 5 · May 20, 2009

Replies: 5

Graduate Faradays rotating disk paradox

arul_k
May 18, 2009 · Replies 9 · May 20, 2009

Replies: 9

Undergrad Creating a Degausser to Reduce Magnetic Field Strength

mgb_phys
May 20, 2009 · Replies 4 · May 20, 2009

Replies: 4

Graduate What does the path of least resistance really mean?

parsec
May 19, 2009 · Replies 3 · May 20, 2009

Replies: 3

Graduate A curious question on the inapplicability of Faraday's law

Nanyang
May 20, 2009 · Replies 1 · May 20, 2009

Replies: 1

Undergrad Calculate Voltage on Capacitor Over Time with RC Time Constant

DIrtyPio
May 18, 2009 · Replies 2 · May 20, 2009

Replies: 2

Graduate (law of conservation of energy ) apply to electricity & magnetism

bipin
Sep 20, 2005 · Replies 5 · May 20, 2009

Replies: 5

Graduate Relative permittivity of gold at radio-frequencies

rteng
May 19, 2009 · Replies 1 · May 19, 2009

Replies: 1

Graduate Does Stacking Coils Create a "Cancellation Field"?

0xDEADBEEF
May 19, 2009 · Replies 2 · May 19, 2009

Replies: 2

Undergrad Electrical field lines in conductive wire

Mahbod|Druid
May 12, 2009 · Replies 2 · May 19, 2009

Replies: 2

Graduate Maxwells equation and Doppler Shift.

andrewr
May 10, 2009 · Replies 1 · May 19, 2009

Replies: 1

Undergrad Can a small shock from a lighter be more dangerous than a wall socket?

thepopasmurf
Apr 24, 2009 · Replies 8 · May 19, 2009

Replies: 8

Undergrad Conducting a Frequency Sweep for Resonance Frequency Determination

kautilya
May 5, 2008 · Replies 5 · May 18, 2009

Replies: 5

High School Portable radio in train, bad reception

Nick89
Apr 27, 2009 · Replies 5 · May 18, 2009

Replies: 5

High School Finding What's Missing In A Circuit

CodyB
May 18, 2009 · Replies 1 · May 18, 2009

Replies: 1

Undergrad Questions about electromagnetic induction

gangsta316
May 17, 2009 · Replies 2 · May 17, 2009

Replies: 2

Undergrad Lecture on magnetron and klystron

Lisa!
May 4, 2009 · Replies 5 · May 17, 2009

Replies: 5

High School Metalic apparatus to receive the discharge of a lightning near houses

DaTario
May 15, 2009 · Replies 6 · May 16, 2009

Replies: 6

Graduate Electromagnetic Tensor:Relativity,E&B Vectors,Equations,Poisson Eq.

Vermax
May 9, 2009 · Replies 14 · May 16, 2009

Replies: 14

High School Why does electrical resistance increase as tempreture increases.

linux kid
Jan 5, 2007 · Replies 22 · May 15, 2009

Replies: 22

Graduate Frequency to shatter a molecule

WhoWee
May 14, 2009 · Replies 1 · May 14, 2009

Replies: 1

Undergrad Unraveling the Mystery of Ohms Law: Answers to Your Burning Questions

suhasm
Apr 27, 2009 · Replies 29 · May 14, 2009

Replies: 29

Graduate Proof of EM Wave Orthogonality: Ideas Needed

dave4000
May 13, 2009 · Replies 8 · May 14, 2009

Replies: 8

Undergrad Electrostatic Constant Written Funny

Pupil
May 13, 2009 · Replies 5 · May 14, 2009

Replies: 5

Undergrad Electric Shock Effects: Current vs. Power

exponent137
May 13, 2009 · Replies 3 · May 13, 2009

Replies: 3

Undergrad Is this property of lines of force true for E.M?

dE_logics
May 10, 2009 · Replies 8 · May 13, 2009

Replies: 8

Graduate Electron distribution in a metal under the influence of a field.

dE_logics
May 11, 2009 · Replies 3 · May 13, 2009

Replies: 3

Graduate Density of Electrons inside cylinder wire

Mahbod|Druid
May 12, 2009 · Replies 7 · May 12, 2009

Replies: 7

Undergrad Magnetic field caused by one Electron ?

Mahbod|Druid
May 12, 2009 · Replies 3 · May 12, 2009

Replies: 3

Graduate Lagrangian of a Force Law, with magnetic monopole

praharmitra
May 11, 2009 · Replies 2 · May 11, 2009

Replies: 2

Graduate Derivation of Lienard-Wiechart

snoopies622
May 10, 2009 · Replies 5 · May 11, 2009

Replies: 5

High School Miracle: Friend Not Electrocuted Moving Cable w/ Metal

Sakha
May 9, 2009 · Replies 9 · May 11, 2009

Replies: 9

Undergrad The unification of electric and magnetic forces

ShayanJ
Apr 30, 2009 · Replies 8 · May 11, 2009

Replies: 8

High School My Radio: Static to Clear with a Wave of My Hand

harshasunder
May 11, 2009 · Replies 1 · May 11, 2009

Replies: 1

Undergrad What do you mean when we say there cant be E.F 'inside' a conductor?

dE_logics
May 4, 2009 · Replies 29 · May 11, 2009

Replies: 29

Graduate Electric flux density a direct measuer of E?

dE_logics
May 10, 2009 · Replies 8 · May 11, 2009

Replies: 8

Undergrad Why Are Fleming's Left and Right Hand Rules Opposite for Generators?

gangsta316
May 10, 2009 · Replies 1 · May 10, 2009

Replies: 1

Graduate EM Wave Reflection at Dielectric Boundaries: Exploring Normal Incidence

madness
May 8, 2009 · Replies 10 · May 10, 2009

Replies: 10

Graduate Measuring the magnetic and electric constants

nuby
May 8, 2009 · Replies 7 · May 10, 2009

Replies: 7

Undergrad Electric Fields and Potential Difference

jgens
May 9, 2009 · Replies 2 · May 9, 2009

Replies: 2

Graduate We dont know much about E.Fs do we?

dE_logics
May 8, 2009 · Replies 5 · May 9, 2009

Replies: 5

Undergrad Frequency of EM Waves in an LC Circuit

IniquiTrance
May 7, 2009 · Replies 5 · May 8, 2009

Replies: 5

Graduate About infinite inductance, zero capacitance

b.shahvir
Apr 23, 2009 · Replies 11 · May 8, 2009

Replies: 11

High School Conventional Current in a circuit

Oscar Wilde
May 5, 2009 · Replies 45 · May 8, 2009

2

Replies: 45

Graduate Resonance frequency of a magnetron cavity

IniquiTrance
May 8, 2009 · Replies 1 · May 8, 2009

Replies: 1

Graduate What is the Relationship Between Induction and Charge Increment?

dE_logics
May 3, 2009 · Replies 5 · May 8, 2009

Replies: 5

High School Charge on conducting and non-conducting body

siddharth5129
May 6, 2009 · Replies 4 · May 7, 2009

Replies: 4

Undergrad Resistance / Frequency relationship

DruidArmy
May 6, 2009 · Replies 7 · May 7, 2009

Replies: 7

High School What Happens to Materials in a Magnetic Field?

jc09
May 7, 2009 · Replies 3 · May 7, 2009

Replies: 3

Undergrad Why is a current produced when shining light into LED

transcendent
May 6, 2009 · Replies 4 · May 7, 2009

Replies: 4

Graduate Understanding Reflection and Ion Movement in EM Waves

Thierry12
May 6, 2009 · Replies 5 · May 7, 2009

Replies: 5

Undergrad Potential difference 'inside' a capacitor

dE_logics
Apr 30, 2009 · Replies 21 · May 6, 2009

Replies: 21

High School How can I magnetize and demagnetize objects without using extreme heat?

Jacquesl
Dec 5, 2007 · Replies 7 · May 6, 2009

Replies: 7

Graduate Generation of a magnetic field by rotating a charged ring

kmarinas86
May 5, 2009 · Replies 2 · May 6, 2009

Replies: 2

Graduate Circulating electrons causes a current

Thierry12
May 5, 2009 · Replies 2 · May 6, 2009

Replies: 2

Undergrad Effect of air resistance on thrown ball

blade_chong
May 4, 2009 · Replies 8 · May 5, 2009

Replies: 8

High School Kirchhoff's First Rule - Electrical Charge / Energy Conservation

idanl
May 5, 2009 · Replies 2 · May 5, 2009

Replies: 2

High School Why can't electromagnetic radiation escape black holes?

wavingerwin
Apr 21, 2009 · Replies 15 · May 5, 2009

Replies: 15

Undergrad How Does Electric Potential Affect Electron Movement Between Charged Plates?

Oscar Wilde
May 4, 2009 · Replies 1 · May 4, 2009

Replies: 1

Undergrad Skin Depth Q: Cellphone Rings in Cavity

Thierry12
May 4, 2009 · Replies 3 · May 4, 2009

Replies: 3

Graduate Electron Oscillation vs Plasma Frequency: Thermal Vibration Radiation

Thierry12
May 3, 2009 · Replies 2 · May 4, 2009

Replies: 2

Graduate Is plasma frequency a maximum?

Thierry12
May 3, 2009 · Replies 1 · May 4, 2009

Replies: 1

High School Troubleshooting a DC Electric Motor

Nano
Apr 30, 2009 · Replies 11 · May 3, 2009

Replies: 11

Graduate Understanding Plasma Frequency and Electromagnetic Wave Reflection

Thierry12
May 3, 2009 · Replies 2 · May 3, 2009

Replies: 2

Graduate Bessel functions, acoustics circular room

erwinscat
May 3, 2009 · Replies 2 · May 3, 2009

Replies: 2

Undergrad Deriving value of capacitance using E = V/d

dE_logics
Apr 26, 2009 · Replies 29 · May 3, 2009

Replies: 29

Graduate About the magnetic vector potential

snoopies622
May 1, 2009 · Replies 7 · May 2, 2009

Replies: 7

Undergrad How Do Unmagnetized Ferromagnetic Materials React in Magnetic Fields?

MonkeysPass
Apr 23, 2009 · Replies 2 · May 2, 2009

Replies: 2

Graduate Energy in Electromagnetic fields

venomxx
May 2, 2009 · Replies 3 · May 2, 2009

Replies: 3

High School Understanding DC Voltage: Will Touching a 12V Car Battery Cause a Shock?

Switch11b
Mar 30, 2009 · Replies 9 · May 1, 2009

Replies: 9

Undergrad Voltage/Current phase diff and more

martix
Apr 27, 2009 · Replies 4 · May 1, 2009

Replies: 4

Graduate Output voltage calculation of vibrational piezoelectric beam

imanemad
Apr 15, 2009 · Replies 2 · May 1, 2009

Replies: 2

Undergrad How Do Magnets Continuously Generate Electricity?

Irresistible_Force
Jun 26, 2006 · Replies 39 · May 1, 2009

2

Replies: 39

Graduate Oscillating Dipole: E & B Fields Near Source

jc09
Apr 30, 2009 · Replies 8 · Apr 30, 2009

Replies: 8

High School Creating a Long-Lasting Static Charge to Attract Dust

danem
Apr 29, 2009 · Replies 2 · Apr 30, 2009

Replies: 2

Graduate Reflection and Transmission of EM waves

whitenight541
Apr 30, 2009 · Replies 10 · Apr 30, 2009

Replies: 10

Graduate Can spinning an electromagnet increase its strength?

kmarinas86
Apr 29, 2009 · Replies 6 · Apr 29, 2009

Replies: 6

High School Understanding the Science Behind Light Bulbs

Ghost803
Apr 29, 2009 · Replies 2 · Apr 29, 2009

Replies: 2

Graduate Transimission Of EM waves in conductors at an angle of incidence

kthouz
Apr 26, 2009 · Replies 4 · Apr 29, 2009

Replies: 4

Undergrad The P.D of a charged capacitor should be more than the charging source .

dE_logics
Apr 26, 2009 · Replies 7 · Apr 28, 2009

Replies: 7

Undergrad Air resistance in pendulum experiment

ViresArcanum
Feb 23, 2008 · Replies 8 · Apr 28, 2009

Replies: 8

Undergrad Can a TRIAC be used to reduce power consumtion for a charger?

U4edot
Apr 27, 2009 · Replies 4 · Apr 28, 2009

Replies: 4

Graduate Light from electron levels, but radio from AC?

mrneglect
Apr 28, 2009 · Replies 2 · Apr 28, 2009

Replies: 2

Undergrad Energy stored in a capacitor works

hhhmortal
Apr 26, 2009 · Replies 4 · Apr 28, 2009

Replies: 4

High School Capacitor Charging: How Current Flows Across a Capacitor

likephysics
Apr 28, 2009 · Replies 1 · Apr 28, 2009

Replies: 1

High School High Voltage to bring electricity to the cities

DaTario
Apr 6, 2009 · Replies 11 · Apr 27, 2009

Replies: 11

Undergrad Resonant Frequency of AC Circuit with Coil, Capacitor and Resistance

xswtxoj
Apr 27, 2009 · Replies 2 · Apr 27, 2009

Replies: 2

High School Understanding Electrical Ground & How It Works

Mårten
Aug 22, 2008 · Replies 41 · Apr 27, 2009

2

Replies: 41

Undergrad Produce an EM wave through interference

Sesse
Apr 27, 2009 · Replies 2 · Apr 27, 2009

Replies: 2

High School So, i can find my notes andlike, now please

confused.
Apr 26, 2009 · Replies 5 · Apr 26, 2009

Replies: 5

Graduate A galilean puzzle in electromagnetism

phoenix85
Apr 26, 2009 · Replies 3 · Apr 26, 2009

Replies: 3

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