Oat Destroyer error?

[Jonbrout]

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Going through the oat destroyer (physics) and am having an issue with number 79. It's a simple parallel plate capacitor problem, but the answers in the solutions aren't matching up.

How much energy would this 10 volt battery supply to the below capacitor.
c1=4uF
c2=5uF
c3=6uF
all of these are in parallel.

thus wouldn't C total = c1+c2+c3?

In the solutions it's saying c total = 4+5+1 =10uF 😕

 

[q1we3]

I agree, that must be error. Capacitors in parallel are simply added to get the final capacitance.

 

[EyEnStein 07]

yes if thats the complete question, then there is an error.

what edition is this from? 2010? 2011?

 

[crazypal]

if c3 is 6, shouldnt it be 4+5+6 = 15?

 

[Jonbrout]

version 2010.