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EF Exam Fear Education × a Resistors in series C × G A 12 Car Battery Die x G Go

ID: 1591434 • Letter: E

Question

EF Exam Fear Education × a Resistors in series C × G A 12 Car Battery Die x G Google Image Result x-G resistors in series eq × -> Dwww.webassign.net/web/Student/Assignment-Responses/last?dep-13097323 W Kirchhoff's circuit lav × ¥A Linear equations calc x y, RP 09 ocee +4 points My Notes A charge Q is placed on a capacitor of capacitance C. The capacitor is connected into the circuit as shown in the figure below, with an open switch, a resistor, and an initially uncharged capacitor of capacitance 3C. The switch is then closed, and the circuit comes to equilibrium 3C In terms of Q and C, find the following (a) the final potential difference between the plates of each capacitor smaller capacitor f larger capacitor f= (b) the charge on each capacitor ?smaller capacitor = larger capacitor- (c) the final energy stored in each capacitor smaller capacitor Uf larger capacitor Uf- (d) the internal energy appearing in the resistor 2. -14 points My Notes GP4.pdf Show all downloads.... x 9:29 PM 2/9/2016 Search the web and Windows

Explanation / Answer

Since charge is conserved, Charge Q will be on an effective capacitance of 4C.

We have general formula, V= Q/C

V =Q/4C

b)

Q=CV

On the C capacitor (small) Q= C . (Q/4C) = Q/4

On the 3C capacitor (large) Q = 3C . (Q/4C) = 3Q/4

c)

we have

E= (1/2) CV2

On the C capacitor ( small): E= Q2/32C

On the 3C capacitor (large) : E = (3Q2)/ 32C