IF YOU want to set an accurate standard for capacitance, the best way is to
knuckle down and count out 10 million electrons one by one, according to
physicists from the National Institute of Standards and Technology (NIST) in
Boulder, Colorado.
Any object subjected to a voltage will accumulate electric charge. The
greater the object’s capacitance, the more charge it will store at a given
voltage.
Like most other physical quantities, the unit of capacitance—the
farad—is defined by a standard. For example, the second is defined as the
duration of 9,192,631,770 vibrations produced by caesium-133 atoms. The existing…
