My Homework problem has 4 parts to it and I can\'t figure out if I\'m doing it w

Question

My Homework problem has 4 parts to it and I can't figure out if I'm doing it write because If I mess up I wont be able to do the other parts.

Three capacitors C1= 5.0 uf, C2= 4.0 uf, and C3 = 9.0 uf, are connected together in series.

A) Find the effective capacitance of the group

a)18uf

b) 1.8 uf

c) 0.6 uf

d) 6.0 uf

B) Sketch the combination of capacitors from part A




C) If the combination of capacitors from part (A) is connected with a 12-V battery, what is the potential difference across the equivalent capacitor?



D) If this combination of capacitors from part (A) is connected with a 12-V battery, find the charge of the equivalent capacitor.
a) 1.5 x 10^-6 C
b) 7.2 x 10^-6 C
c) 2.2 x 10^-5 C
d) 5.0 x 10^-8 C

Explanation / Answer

A) Find the effective capacitance of the group effective capacity=C now 1/C=1/5+1/4+1/9 all in   micro farad now C=1.782=1.8 so option b is correct. C) If the combination of capacitors from part (A) is connected with a 12-V battery, what is the potential difference across the equivalent capacitor? potential difference= 12V D) If this combination of capacitors from part (A) is connected with a 12-V battery, find the charge of the equivalent capacitor. q=CV=1.8* 10-6*12= 2.2 x 10^-5 C so option C is correct.

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