Author Question: A 30-mF capacitor is charged to an unknown potential V0 and then connected across an initially ... (Read 86 times)

xroflmao · **on:** Jul 28, 2018

A 30-mF capacitor is charged to an unknown potential V0 and then connected across an initially uncharged 10-mF capacitor. If the final potential difference across the 10-mF capacitor is 20 V, determine V0.
a. 13 V
b. 27 V
c. 20 V
d. 29 V
e. 60 V

Question 2

A 30-mF capacitor is charged to 80 V and then connected across an initially uncharged capacitor of unknown capacitance C. If the final potential difference across the 30-mF capacitor is 20 V, determine C.
a. 60 mF
b. 75 mF
c. 45 mF
d. 90 mF
e. 24 mF