electrical resistance
Impedes electron flow
Electrical resistance is the opposition a material offers to the flow of electric current, measured in ohms.
A wire's resistance depends on its material, length, and thickness—copper conducts easily while rubber resists almost completely.
Resistance converts electrical energy to heat, which is why toasters glow and lightbulbs warm.
Check the resistance with a multimeter.
- conductorOne who directs musicians
- copper wireMetal strand conducting electricity
- insulatorSubstance resisting energy flow
- Ohm's lawV equals I times R
- impedanceAC circuit opposition
ohmmeter · series circuit · parallel circuit · wire · wire gauge · voltage drop · power loss · rheostat · current · potentiometer · ground · short · ampere · watt · opposition · flow · friction · semiconductor
- electricitybattery, batteries, wire, wires, outlet
- resistancedefiance, dissidence, opposition, pushback, civil disobedience
- atomic propertiesatomic number, atomic mass, atomic weight, electronegativity, valence electrons
- conduction typesheat conduction, thermal conduction, saltatory conduction
- electrical dischargespark, arc, corona, plasma, lightning
- ionsion, ions, anion, cation, anions
electrical resistanceconductance
Ease of current flow
conductivity · electrical conductivity · superconductivity · zero resistance · admittance
electrical resistanceconductance
Ease of current flow
superconductor · short circuit · capacitance · inductance · reactance
resist, electric, resistance, electricity, electrical, nonresistant, resistor, resistive, nonresistance