Which unit is associated with capacitance?

Which unit is associated with capacitance?

• A. Ampere
• B. Volt
• C. Farad
• D. Watt

Answer: (C)

Capacitance measures how much charge a capacitor can store per unit of voltage, described by Q = C V. The unit for this property is the farad, defined as one coulomb of charge per one volt. In other words, a farad is a measure of how much charge is stored per volt of potential difference. Since capacitors in real circuits are often much smaller, we use submultiples like microfarads, nanofarads, or picofarads. The other units correspond to different quantities: ampere is current, volt is voltage, and watt is power, so they do not measure capacitance.

Capacitance measures how much charge a capacitor can store per unit of voltage, described by Q = C V. The unit for this property is the farad, defined as one coulomb of charge per one volt. In other words, a farad is a measure of how much charge is stored per volt of potential difference. Since capacitors in real circuits are often much smaller, we use submultiples like microfarads, nanofarads, or picofarads. The other units correspond to different quantities: ampere is current, volt is voltage, and watt is power, so they do not measure capacitance.