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45% Edit ew History Bookmarks People Window Help ome x G coulomb to microcoulomb-G x MasteringPhysics: Ch 24 HW Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID-89184890 Ch 24 HW Problem 24.61 what is the charge on the 43 Fcapair? Express your answer using two significant figures Constants These capacitors having capacitances of 8.5 8.1 pF. and 4.3 pF are connected in series across a 38-V potential difference. tQ,- 7.6 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B that is te ou·energy stored in all tree capacitors? Express your answer using two significant figures

Explanation / Answer

The equivalent capacitance will be given by:

1/Ceq = 1/C1 + 1/C2 + 1/C3

=> C = 2.11 x 10-6 F

since the capacitors are connected in series, the charge on each capacitor will be the same and it will be:

Q = CeqV = 2.11 x 10-6 x 38 = 8.022 x 10-5 C

so, charge on 4.3 uF capacitor = 8.0 x 10-5 C [answer to part A]

B] Total Energy in all the capacitors will be:

U = (1/2)CV2 = (1/2)(2.11 x 10-6)(38)2 = 1.5 x 10-3 J.

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