Question

which symbol and unit of measurement are used for resistance?
○ symbol: r; unit ω:
○ symbol: ω; unit: r
○ symbol: r; unit: o
○ symbol: r; unit: r

Explanation:

In physics (a subfield of Natural Science), resistance in an electrical circuit is represented by the symbol \( R \), and its unit of measurement is the ohm, denoted by the symbol \( \Omega \). Among the given options, the first option has the correct symbol (\( R \)) and unit (\( \Omega \)).

Answer:

A. symbol: \( R \); unit \( \Omega \)