Capacitors C 1 = 14 ? F and C 2 = 25 ? F are each charged to 15 V , then disconn

Question

Capacitors C1=14?F and C2=25?F are each charged to 15V , 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 C1connected to the negative plate of C2 and vice versa.

1.)Afterward, what is the charge on each capacitor?

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

Q1,Q2=

2.)What is the potential difference across each capacitor?

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

Explanation / Answer

Q1=C1V = 14 uF*15V = 210uC
Q1=C2V=25*15V= 375uC

When connected in reverse parallel
+375....-210
-375....+210
=Q = +175 over -175 uC

Q1 = Q(C1/C1+C2) = 175(14/39)) = uC
Q2 = Q(C2/C1+C2) = 175(25/39))= uC

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