Capacitor circuits

[Grandsatsuma]

hi, I am working on a college assignment. I'm on a day release program and unfortunately I missed the day where we covered this part. Please could someone help me?


The questions I need to answer are:

a) For each capacitor shown in figure 12 determine the charge, energy stored and voltage across EACH capacitor.

Figure 12 is:

200V DC series circuit with 3 capacitors C1 = 4 μF C2= 8 μF C3 = 10 μF


b) (same question different diagram)

Figure 13 is:

100v rail with two capacitors in parallel.
C1 = 12 μF
C2 = 2 μF



I have no Idea even on where to start.

 

[Raven Luni]

Series and parallel configurations of capacitors are basically calculated as the opposite of those with resistors.

Parallel:
C1 + C2 + C3 + ........

Series:
C1 x C2 x C3 x .........
C1 + C2 + C3 + .........


So if you wanted the values for each individual capacitor, you would take them proportionally based on the above formulae.

 

[(*steve*)]

An alternative for series capacitors (which is the same as for parallel resistors) is:

1/Ct = 1/C1 + 1/C2 + 1/C3 + ... + 1/Cn

Where Ct is the total capacitance and C1 through Cn are the capacitors in series.