Question

three capacitors each of capacitance 9pf are connected in series (a) what is the capacitance of the combination? (b) what is the potential difference across each capacitors if the combination is connected to a 120v supply?

Answer 1

(a)the capacitance of the combination is3pf
(b)the potential difference across each capacitors if the combination is connected to a 120v supply is 40 V

Answer 2

when the three capacitors r in series,
equivalent capacitance C=9/3 pf=3*10^-12F
voltage supply V=120v
potential difference of each of the three capacitors be E

hence E=V/3=120/3=40v