Author Question: A 30-F capacitor is charged to an unknown potential V0 and then connected across an initially ... (Read 67 times)

clippers! · **on:** Jul 28, 2018

A 30-F capacitor is charged to an unknown potential V0 and then connected across an initially uncharged 10-F capacitor. If the final potential difference across the 10-F 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-F 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-F capacitor is 20 V, determine C.
a. 60 F
b. 75 F
c. 45 F
d. 90 F
e. 24 F