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a) After the switch S is closed, find the maximum charge on each capacitor. b) A

ID: 2063458 • Letter: A

Question

a)After the switchSis closed, find the maximum charge on each capacitor.

b)After the switchSis closed, find the maximum potential difference across each capacitor.

c)After the switchSis closed, find the maximum reading of the ammeter A.

d)After the switchSis closed, find the time constant for the circuit.

In the circuit shown in the figure , the capacitors are all initially uncharged and the battery has no appreciable internal resistance. Assume that / cal E = 53.0 V and R = 19.0 / Omega a)After the switchSis closed, find the maximum charge on each capacitor. b)After the switchSis closed, find the maximum potential difference across each capacitor. c)After the switchSis closed, find the maximum reading of the ammeter A. d)After the switchSis closed, find the time constant for the circuit.

Explanation / Answer

ceq=20x30x40/(20+30+40)+10=266.67

total charge q=ceq*V=266.67*53=14133.33

charge at 10=10/266.67x14133.33=529.99

" at 20 = 20/(20+30+40)x13603.34=3022.96
" at 40 =40/(20+30+40)x13603.34=6045.92
" at 30 = 30/(20+30+40)x13603.34=453.44