What is Farad?
A Farad (symbol: F) is the SI unit of capacitance, named after the English scientist Michael Faraday. In electrical systems, a farad measures how much electric charge a capacitor can store per volt of electrical potential. One farad is defined as the capacity to store one coulomb of charge at one volt.
In residential and commercial electrical systems, capacitors rated in microfarads (µF) or picofarads (pF) are commonly used to manage power flow, reduce noise, or stabilize voltage. For example, HVAC systems often use capacitors rated in microfarads to help motors start and run efficiently. Electricians must ensure that the correct capacitance rating is used when replacing or installing capacitors to maintain system performance and safety.
