What is the formula for capacitance?

The formula for capacitance is expressed as C = Q/V, where C represents capacitance, Q represents the charge stored in the capacitor, and V represents the voltage across the capacitor. This relationship indicates that capacitance is defined as the amount of electric charge a capacitor can store per unit voltage.

Understanding this formula is crucial because it highlights how capacitance is directly proportional to the amount of charge and inversely proportional to the voltage. Thus, for a given capacitor, if you increase the charge (while keeping the voltage constant), the capacitance increases. Conversely, increasing the voltage (while maintaining the same charge) results in a decrease in the measured capacitance.

The other formulas provided, such as V/R or Q*T, pertain to other concepts in electrical circuits, specifically Ohm's law and time-related charge calculations, respectively, but do not define or provide a direct relationship of capacitance in the context of capacitors.