Question

which symbol and unit of measurement are used for voltage?
symbol: v; unit: a
symbol: r; unit ω:
symbol: v; unit: v
symbol: r; unit: v

Explanation:

In electrical - related concepts, the symbol for voltage is $V$ and its SI unit is the volt, also represented by $V$. 'A' is the unit of current (ampere), '$\Omega$' is the unit of resistance (ohm), and $R$ is the symbol for resistance.

Answer:

C. symbol: V; unit: V