A 25.0 µF capacitor and a 40.0 µF capacitor are charged by being connected acros

Question

A 25.0 µF capacitor and a 40.0 µF capacitor are charged by being connected across separate 40.0 V batteries.


(a) Determine the resulting charge on each capacitor.
_____µC (40 µF capacitor)
_____µC (25 µF capacitor)

(b) The capacitors are then disconnected from their batteries and connected to each other, with each negative plate connected to the other positive plate. What is the final charge of each capacitor, and what is the final potential difference across the 40.0 µF capacitor?
Charges
______µC (40 µF capacitor)
______µC (25 µF capacitor)

Potential Difference
______V (40 µF capacitor)

Explanation / Answer

A) 1- 1200 µC (40 uF capacitor) Q=C x V = 40 10^-6 x 40 2- 750 µC (25 uF capacitor) Q=C x V = 25 10^-6 x40 (B) 3- 4 1950 µC /2 = 975 µC (C) 5 V= Q/C = 975 / 40= 24.375 V Goodbye

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