Author Question: A 3.0-F capacitor charged to 40 V and a 5.0-F capacitor charged to 18 V are connected to each other, ... (Read 121 times)

a0266361136 · **on:** Jul 28, 2018

A 3.0-F capacitor charged to 40 V and a 5.0-F capacitor charged to 18 V are connected to each other, with the positive plate of each connected to the negative plate of the other. What is the final charge on the 3.0-F capacitor?
a. 11 C
b. 15 C
c. 19 C
d. 26 C
e. 79 C

Question 2

A copper cable is to be designed to carry a current of 300 A with a power loss of only 2.0 watts per meter. What is the required radius of the copper cable? (The resistivity of copper is 1.7 108 / m.)