Final answer:
To find the potential difference across the plates of a parallel-plate capacitor, we can use the equation: V = Q / C. Plugging in the given values, a potential difference of 2.88 V is required to store 7.2×10^-4 C on this capacitor.
Step-by-step explanation:
To find the potential difference across the plates of a parallel-plate capacitor, we can use the equation:
V = Q / C
Where V is the potential difference, Q is the charge stored on the capacitor, and C is the capacitance.
Plugging in the given values:
V = 7.2×10-4 C / 25 µF = 2.88 V
Therefore, a potential difference of 2.88 V is required to store 7.2×10-4 C on this capacitor.