Capacitors and Ceff: Quick Question!!

[radiohead55]

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I am a bit confused about what Ceff really stands for.

If you add a capacitor (6F) in series to another one (6F):
1/Ceff = 1/C + 1/C = 1/6 + 1/6 = 2/6 and inverse in 3F

Does the 3F represent the capacitance that each capacitor contributes to the circuit, for a total of 6F? So, adding a capacitor in series decreases its individual capacitance?

or am i missing something here...?

Thank you for any insight!

 

[BerkReviewTeach]

I am a bit confused about what Ceff really stands for.

If you add a capacitor (6F) in series to another one (6F):
1/Ceff = 1/C + 1/C = 1/6 + 1/6 = 2/6 and inverse in 3F

Does the 3F represent the capacitance that each capacitor contributes to the circuit, for a total of 6F? So, adding a capacitor in series decreases its individual capacitance?

or am i missing something here...?

Thank you for any insight!

Ceq refers to the magnitude of a hypothetical single capacitor in the circuit that would have the same impact as the collection of capacitors it represents. The two 6F capacitors in series have the same effect as a single 3F capacitor in the circuit would have.

 

[lixxx669]

Knowing that C=Eo*A/d (A is the area of the parallel plate, d is the distance of the parallel plates) would make you easier to under stand this problem. If two capacitors are in serious, it's just like A increased, then the Ceff woul be smaller than any one of the capacitors. If two capacitors are parallel, it's just like d decreased, then Ceff would be greater.

 

[BerkReviewTeach]

Knowing that C=Eo*A/d (A is the area of the parallel plate, d is the distance of the parallel plates) would make you easier to under stand this problem. If two capacitors are in serious[syc], it's just like A increased, then the Ceff woul be smaller than any one of the capacitors. If two capacitors are parallel, it's just like d decreased, then Ceff would be greater.

I think you have series and parallel reversed for capacitors.

Parallel is like two side-by-side, which would be like having a wider capacitor (C increases as A increases).

Series is like two head-to-tail (A||C-A||C), which would be like having a longer capacitor (C decreases as d increases).

 

[lixxx669]

I think you have series and parallel reversed for capacitors.

Parallel is like two side-by-side, which would be like having a wider capacitor (C increases as A increases).

Series is like two head-to-tail (A||C-A||C), which would be like having a longer capacitor (C decreases as d increases).

Yup, you are right~ sorry for the mistake~