Identify the SI unit of electrical resistance.

Correct option is A

The correct answer is (a) Ohm

The SI unit of electrical resistance is the Ohm, represented by the symbol Ω.

Resistance is a measure of how much an electrical conductor opposes the flow of electric current.

Resistance (R) is calculated as 

R = V/I

Where:

• R = Resistance in ohms (Ω)
• V = Voltage in volts (V)
• I = Current in amperes (A)

• Watt:

  • SI unit of power, not resistance.
  • Power is the rate at which electrical energy is consumed or generated.

• Coulomb:

  • SI unit of electric charge.
  • 1 Coulomb = charge transported by a current of 1 ampere in 1 second.

• Ampere:

  • SI unit of electric current.