The Amount Of Capacitance Of A Capacitor – The capacity of a capacitor is the ratio of the amount of electric charge to the voltage of the capacitor.
Basic Formula Capacitance
C = Q / V
C = Capacity in farad units
Q = Electric charge in Coulomb units
V = Capacitor voltage in Volt units
If calculated by the formula C = 0.0885 D / d. Then the capacity is in units of Piko Farad.
D = the area of the plate that is facing each other and affecting each other in units of cm 2.
d = distance between plates in units of cm.
1 farad understanding
f the voltage between plates is 1 volt and the amount of electric charge on the plate is 1 coulomb, then the ability to store electricity is called 1 farad.
In reality capacitors are made with units under 1 farad. Most electrolytic capacitors are made from 1 microfarad to several millifarads. Variable capacitors have a large physical size but the capacitance value is very small, only up to hundreds of picofarads.