the.com/farad
the unit so absurdly huge that real capacitors beg to be measured in millionths
means The SI unit of electrical capacitance, defined as the capacity to store one coulomb of charge per volt of potential difference.
from Named in honor of Michael Faraday, the self-taught English bookbinder's apprentice who became one of the greatest experimentalists of the 19th century, mapping the link between electricity and magnetism. The unit was christened in his memory, so the word literally carries his surname — clipped just slightly from 'Faraday' to 'farad,' the way 'volt' nods to Volta and 'ampere' to Ampère.
- named after
- Michael Faraday, who barely did formal math
- comically large
- a one-farad cap was once room-sized
- earth's capacity
- the whole planet measures roughly 700 microfarads
- defined as
- one coulomb of charge per volt
- common units
- picofarads and microfarads rule actual circuits
capacitance of earth — earth's capacitance is approximately 710 microfarads, measured as the ability to store electrical charge
typical ceramic capacitor — common ceramic disk capacitors range from 1 picofarad to 10 microfarads in practical electronics