Physics Van 3-site Navigational Menu
Ask The Van
The Physics Van
Science2Schools
Department of Physics
University of Illinois at Urbana-Champaign
Physics Van Navigational Menu
Home
Answering Guidelines
Citation Information
How Reliable Are We?
Our Volunteers
Other Q&A Sites
Contact Us
Question Categories
Electricity & Magnets
AC...DC
Charges
Circuits & Batteries
Compasses
Conduction & Resistance
Electrocution
Electromagnetism
Homemade Batteries
Maglev
Magnets
Stuff that Sparks
Everything Else
About Physics
Animals & People
Architecture
Careers
Chemistry
Computers
Density & Hardness
Education
Explosions
Gizmos & Gadgets
Hard to Categorize
Health
History
Math
Measurements
Microwave Ovens
Philosophy
Plants
Rusting
Saving the World
Science Projects
Scientific Instruments
Sports
The Elements
Time
Light & Sound
Colors
Diffraction & Interference
EM Waves
Glowing
Lasers
Lenses & Mirrors
Music
Properties of Light
Properties of Sound
Shadows
Speed of Sound
Telescopes, Binoculars & Cameras
Making Stuff Move
Balance
Bouncing, Bumping & Crashing
Distance, Velocity & Acceleration
Friction
Gravity
Newton's Laws
Oscillations & Resonance
Simple Machines
Stuff that Spins
Work, Energy & Momentum
New & Exciting Physics
Antimatter
Chaos
cosmology
Dark Matter
Elementary Particles
Inside the Atom
Quantum Mechanics
Radioactivity
Relativity
Superconductivity
To Be Discovered...
What Atoms Look Like
States of Matter & Energy
Boiling, Evaporating & Condensing
Dissolving
Entropy
Fire
Green Energy
Melting & Freezing
Non-Newtonian Fluids
Properties of Water
Really Really Really Cold
States of Matter
Surface Tension
Temperature & Heat
Types of Energy
Stuff About Space
Earth & Moon
Getting to Space
Sun & Stars
The Rest of the Solar System
The Rest of the Universe
Vacuum
Underwater & in the Air
Air Resistance
Airplanes
Balloons
Homemade Rockets
It Floats!
Liquid Flow
Pressure
Sky & Air
Surface Tension
Tides
Water Waves
We Call Baloney
Baloney Websites
Search
Ask a Question
Report Baloney
Ask the Van Questions by Subcategories
Electricity and Magnets: Conduction
Apricot Conductors
Voltage and current
temperature and resistance
Electrolytes
buzzing bulbs
salt water conducts
free electron theory
length of wire and resistance
a nichrome thermometer
Watts and Volts
electrolytic conductance
bulbs in series
citrus conductance
Amazing Silver
metallic conduction
Electron beam in a vacuum
Cool Current
Magnetism, Electricity, and Stuff that doesn’t Conduct
Resistance
Electrical resistance of Table Salt
Copper vs. Nichrome
age resistance
Things affecting resistance
choke dissipation
dielectric
Electrical insulators conducting magnetic fields
insulator and grounding
How do Variable Resistors work?
can magnets do work?
plasma and electricity
resistance of stretched wire
nickel-chrome in metal detector
resistance vs. temperature
ozonated distilled water
Shielding low frequency microwaves
Why dipole moment always from negative to positive charge?
electrical conductivity of silk
magnetoresistance of saltwater?
measuring conductivity with a light bulb
Electromagnetic properties of gold
frozen power lines
Thin and thick wires
Ohm's law and time reversal
resistance of ideal voltmeter
Electromagnetic shielding with concrete
Why continuous current flow?
Heating a barn with a solar panel
Zero field inside a conductor?
impedance matching solar cells
Why reverse bias a photodiode?
Does current take the path of least resistance?
magnets, microwaves, and conductors
why use multiple-strand wires?
Human body resistance
gapless electrons in graphene
blocking a wire with a field
negative Thomson effect
four-probe conductivity measurement
semiconductor Fermi levels
constant current in resistors
no-hands ipod screen
conductive carbon fiber
lightbulb power: not homework
voltage on radioactive power source
finding gold with magnets
current density in London equation
Does distilled water conduct electricity?
Is the electric field in a conductor really zero?
Transmission of an A/C voltage along a cable
heating in a superconducting circuit
Why is the net charge on a conducting solid body always on the surface?
Thermal and Electrical Conduction
What is the dielectric constant of plastic?
induction heating
spotting small polarons
Temperature dependence of a carbon resistor
voltage in a short-circuit
waves of electricity
Resistance in a DC circuit.
Why can't microwaves escape from the oven?
copper-aluminum connections
resistivity vs. temperature
is electricity in wires?
Water vs. Ice as Conductors
bottlenecks to flow
superconductor critical current density
Difference between dissipated and useful power
Why does the bulb get hot & the wire stay cool?
theremin principles
depletion regions
electron hopping
Conductivity of gold and applications?
Can an electron move in vaccum?
Why don"t birds get shocked?
measuring free electron density
Electrical and heat conductivity
Thick wire versus thin wire?
visualizing metallic conductivity
electron flow
toward electrocution
Electrical earth grounds
paper insulator?
Electrons and anode current
Ohm's law still okay
magnetoresistance
The human body is not a superconductor
water conducts
hot electromagnets
electrons and holes
Plenty of electrons
measuring salt concentration
plastic dielectric
Electrons moving in conductors
Wire resistance
conducting salt water
copper wires
Water + Electricity = ?
