I just posted this question and it was answered wrong... please HELP!! In the ci
ID: 1392754 • Letter: I
Question
I just posted this question and it was answered wrong... please HELP!!
In the circuit shown in the figure below(Figure 1) , the applied potential across ab is 24.0V .
Part A: Calculate the charge on a 3.00?F capacitor.
Part B: Calculate the charge on a 5.00?F capacitor.
Part C: Calculate the charge on a 6.00?F capacitor.
Part D: Calculate the potential difference across a 3.00?F capacitor.
Part E: Calculate the potential difference across a 5.00?F capacitor.
Part F: Calculate the potential difference across a 6.00?F capacitor.
a 3.00 uF 5.00 6.00 uFExplanation / Answer
Here ,
as 5 uF and 3 uF are in parallel ,
Cp = 5 + 3
Cp = 8 uF
Now, 6 uF and Cp in series ,
1/Ceq = 1/8 + 1/6
Ceq = 3.43 uF
A)
charge on 3 uF , Q = 3 * 3.43 * 24/(3 + 5)
charge on 3 uF , Q = 30.9 uC
B)
charge on 5 uF , Q = 5 * 3.43 * 24/(3 + 5)
charge on 3 uF , Q = 51.4 uC
C)
charge on 6 uF = 3.43 * 24
charge on 6 uF = 82.32 uC
D)
V(3) = V(5) = Q/C
V(3) = V(5) = 51.4/5
V(3) = V(5) = 10.3 V
E)
V(3) = V(5) = Q/C
V(3) = V(5) = 51.4/5
V(3) = V(5) = 10.3 V
F)
V(6) = 24 - 10.3 = 13.7 V
potential across 6 uF is 13.7 V