C Circuits x Additional Course Conter x Computer Setup x\'ND Search Results Secu

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C Circuits x Additional Course Conter x Computer Setup x'ND Search Results Secure | https/www.flipitphysics.com/Course/ViewProblem?unitltemiD-36244728kenrollme Moodle at Trinity Lo TAS logon Desmos | Graphing Webssign H Netfix Sy Symbolab 123456 Switch S, shown in the figure below, s closed after having been open for a long time. 10.0F 15.0? 1202 S 15.0 ? 5.00 ?:F 10.0 ? 500 V 1) What is the initial value of the current through the battery just after switch S is closed? A Submit 2) What is the current through the battery a long time after switch S is closed? A Submit 3) What are the charges on the plates of the capacitors a long time after switch S is closed? uC Submit

Explanation / Answer

After switch is closed all capacitors aren't charged so

three resistors in bridge are in parallel

1/R = 1/15 + 1/12 + 1/15

R = 4.615

so R_total = 10 + 4.615 = 14.615 ohm

I = 50/14.615 = 3.42 A

b)

after a long time three resistors are effective in series

so R = 15+15+12+10 = 52 ohm

so I = 50/52 = 0.9615 A

c) V on 10 uF = 0.9615*(15+12) since its in parallel with the combo of 15 and 12 resistors

Q 10uF = 10*0.9615*(15+12)= 259.6 uC

Q 5uF = 5*0.9615(15+12)=129.8 uC

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