Ohm is denoted by symbol _________.

The correct answer is Ω .

Key Points

• The ohm (symbol: Ω) is the SI derived unit of electrical resistance.
• It is named after German physicist Georg Simon Ohm.
• An ohm is defined as the electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces a current of one ampere.
• The unit is represented by the Greek letter Omega (Ω).
• The concept is essential in understanding and analyzing electrical circuits.

Additional Information

• Georg Simon Ohm
  • He was a German physicist and mathematician.
  • Ohm is best known for Ohm's Law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points.
• Ohm's Law
  • The formula is V = IR, where V is voltage, I is current, and R is resistance.
  • It is a fundamental principle used in electrical engineering and physics.
• SI Units
  • SI stands for the International System of Units.
  • It is the modern form of the metric system and the world's most widely used system of measurement.
• Electrical Resistance
  • It is a measure of the difficulty to pass an electric current through a conductor.
  • Materials with low resistance are good conductors, while materials with high resistance are good insulators.