Answer and Explanation:
The correct symbol and unit of measurement for voltage are:
Symbol: V
Unit: V (Volts)
Voltage is a measure of the electric potential difference between two points in an electrical circuit. It represents the amount of energy carried by electric charges and determines the flow of current in a circuit. The symbol "V" is used to represent voltage, and the unit of measurement is the Volt (V).
It's important to note that the other options provided are incorrect. The symbol "A" is used for current, not voltage. The symbol "R" represents resistance, and while it is related to voltage, it is not the symbol used to measure voltage. The correct unit for resistance is the Ohm (Ω).
Therefore, the correct symbol and unit of measurement for voltage are:
Symbol: V
Unit: V (Volts)