Question

Capacitors C1=10 $\mu$ F and C2=25 $\mu$ F are each charged to 25V , then disconnected from the battery without changing the charge on the capacitor plates. The two capacitors are then connected in parallel, with the positive plate of C1 connected to the negative plate of C2 and vice versa.

Part A

Afterward, what is the charge on each capacitor?

Express your answer using two significant figures. Enter your answers numerically separated by a comma.

Part B

What is the potential difference across each capacitor?

Express your answer using two significant figures. Enter your answers numerically separated by a comma.

Answer 1

let the charge flowed be q.so,

(25*10-q)/10 + (25*25-q)/25=0

or q=357.143 uC

so charge on first capacitor 10uF=107.143 uC

charge on seconf capacitor 25 uF=267.857 uC

B)P.D across each=107.143/10

=10.71 V