WIRING 2 CAPACITORS IN SERIES

Series and Parallel Capacitors | Capacitors | Electronics
When capacitors are connected in series, the total capacitance is less than any one of the series capacitors’ individual capacitances. If two or more capacitors are connected in series, the overall effect is that of a single (equivalent) capacitor having the sum total of the plate spacings of the individual capacitors.
Electronics Components: Capacitors in Parallel and Series
Connect capacitors in series. Note that the ellipsis at the end of the expression indicates that you keep adding up the reciprocals of the capacitances for as many capacitors as you have. Here is an example for three capacitors whose values are 100 μF, 220 μF, and 470 μF: