What is the SI unit of capacitance?
2 Answers
The SI unit of capacitance is the **farad (F)**. One farad is defined as the capacitance of a capacitor that, when charged with one coulomb of electric charge, results in a potential difference of one volt across its plates. The farad is a large unit, so capacitance values are often expressed in smaller units such as microfarads (µF), nanofarads (nF), or picofarads (pF).
The SI unit of capacitance is the **farad** (symbol: **F**). One farad is defined as the amount of capacitance required to store one coulomb of charge when the potential difference across the capacitor is one volt. In other words, a capacitor has a capacitance of one farad if a voltage of one volt across it results in a charge of one coulomb.
In practical terms, farads are often used in smaller units due to their large size in typical applications:
- **Microfarad** (µF): \( 1 \, \text{µF} = 10^{-6} \, \text{F} \)
- **Nanofarad** (nF): \( 1 \, \text{nF} = 10^{-9} \, \text{F} \)
- **Picofarad** (pF): \( 1 \, \text{pF} = 10^{-12} \, \text{F} \)
These smaller units are commonly used in electronic components and circuits.
In practical terms, farads are often used in smaller units due to their large size in typical applications:
- **Microfarad** (µF): \( 1 \, \text{µF} = 10^{-6} \, \text{F} \)
- **Nanofarad** (nF): \( 1 \, \text{nF} = 10^{-9} \, \text{F} \)
- **Picofarad** (pF): \( 1 \, \text{pF} = 10^{-12} \, \text{F} \)
These smaller units are commonly used in electronic components and circuits.