Consider a and a capacitor that are connected in series. Let the combination be

Question

Consider a and a capacitor that are connected in series. Let the combination be fully charged by a battery that has ohms of internal resistance. How much energy E (in J) does the battery transfer to the capacitors, in charging them? Consider a 28 micro-farad and a 39 micro-farad capacitor that are connected in series. Let the combination be fully charged by a 8.3-V battery that has 5.2 ohms of internal resistance. How much energy E (in J) does the battery transfer to the capacitors, in charging them? The answer is 5.614e-4 but i am not sure how to get that

Explanation / Answer

E = 0.5 CV^2

C eq = C1 x C2 / ( C1 + C2 ) = 16.29E-6

so E = 561.4E-6 or 5.61E-4 J

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