Correct Answer - Option 1 : Ohm
Electrical Resistance:
- The property of any conductor that opposes the flow of electric current through it is called resistance.
- It is denoted by R and the SI unit is the ohm (Ω).
The resistance is given by:
\(R=\rho \frac{l}{A}\)
Where ρ is resistivity, L is the length and A is the area of the cross-section.
EXPLANATION:
- The SI unit of electrical resistance is Ohm (Ω) and it is the SI derived unit of electrical resistance, named after German physicist, Georg Simon Ohm.
- The resistance of the conductor is said to be 1 Ohm if a current of 1 ampere flows through it when a potential difference of 1 volt is applied across its ends.
- Volt per Ampere is known as Ohm.
