When two or more identical capacitors are connected in series across a potential difference?

When two or more identical capacitors (or resistors) are connected

in series across a potential difference, the potential difference divides

equally among them.

For example, if you have nine identical capacitors (or resistors) all

connected end-to-end like elephants in a circus parade, and you

connect the string to a source of 117 volts (either AC or DC), then

you will measure

(117v / 9) = 13 volts

across each unit in the string.