Author Question: A 25-F capacitor charged to 50 V and a capacitor C charged to 20 V are connected to each other, with ... (Read 99 times)

WhattoUnderstand · **on:** Jul 28, 2018

A 25-F capacitor charged to 50 V and a capacitor C charged to 20 V are connected to each other, with the two positive plates connected and the two negative plates connected. The final potential difference across the 25-F capacitor is 36 V. What is the value of the capacitance of C?
a. 43 F
b. 29 F
c. 22 F
d. 58 F
e. 63 F

Question 2

A 6.0-F capacitor charged to 50 V and a 4.0-F capacitor charged to 34 V are connected to each other, with the two positive plates connected and the two negative plates connected. What is the total energy stored in the 6.0-F capacitor at equilibrium?
a. 6.1 mJ
b. 5.7 mJ
c. 6.6 mJ
d. 7.0 mJ
e. 3.8 mJ