In the circuit shown in the figure, the capacitors are all initially uncharged a
ID: 2290515 • Letter: I
Question
In the circuit shown in the figure, the capacitors are all initially uncharged and the battery has no appreciable internal resistance. Assume that E = 51.5V and R = 25.0? .
Part A
After the switch S is closed, find the maximum charge on each capacitor.
Answer in the order indicated. Separate your answers using commas.
Part B
After the switch S is closed, find the maximum potential difference across each capacitor.
Answer in the order indicated. Separate your answers using commas.
Part C
After the switch S is closed, find the maximum reading of the ammeter A.
Part D
After the switch S is closed, find the time constant for the circuit.
Explanation / Answer
a)
q10 = 51.5 * 10 pC = 515 pC
q20 = q30 = q40 = 51.5* 9.23 pC= 475.34 pC
b)
V10 = 51.5 V
V20 = 475.34/20 = 23.767 V
V30 = 475.34/30 = 15.84 V
V40 = 475.34/40 = 11.88 V
c)
i = V/R = 51.5/25 = 2.06 A
d)
T = R*C = 25*(10+9.23) = 480.75 ps