The relationship between electrical potential energy (PE), capacitance (C), and potential difference (V) can be expressed through the equation,
V = PE / C
V is equal to the quotient of potential energy and capacitance.
When we substitute the known values from the item,
V = 73 J/ 120 C
V = 0.61 J/C
Thus, the voltage or potential difference is equal to 0.61 V.