Ohm

Electricity law namesake

An ohm is the standard unit of electrical resistance, measuring how much a material opposes the flow of electric current.

Named after German physicist Georg Ohm, who formulated Ohm's law relating voltage, current, and resistance.

The symbol is the Greek letter omega (Ω): a 100-ohm resistor.

unit

resistance

Capacity to withstand force

  • ampereUnit of electrical flow
  • voltElectromotive force unit
  • wattUnit measuring power

impedance · conductance · multimeter · resistor · circuit · megohm · kilohm · milliohm · electrical · current

law

voltage

Electrical potential difference

proportional · Kirchhoff · electrical engineering · calculation · linear · relationship · equation · direct · inverse

meditation

mantra

Repeated focus phrase

  • chantingRhythmic repetitive vocalization
  • omHindu meditative chant
  • vibrationRapid oscillating movement

Sanskrit · spiritual · yoga · sound · meditation · sacred · syllable · Hinduism · Buddhism · resonance

Categories
Opposites
electrical property measured

Ohmmho

Electrical conductance measure

conductance · admittance

circuit behavior

Ohmconductor

One who directs musicians

superconductor · short circuit · zero resistance · insulator

Phrases
Family

ohms, ohmmeter

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G