Electronics - Capacitors - Discussion
Discussion Forum : Capacitors - General Questions (Q.No. 31)
31.
If C1, a 4.7 
F capacitor, and C2, a 3.3 F capacitor are in series with 18 Vdc applied, what is the voltage across C1?
F capacitor, and C2, a 3.3 F capacitor are in series with 18 Vdc applied, what is the voltage across C1?Discussion:
17 comments Page 1 of 2.
Gilbert said:
4 years ago
Assume that the time is infinite and Review transient response.
Dani said:
4 years ago
How about the energy it consumed, what is the answer? Please explain in detail.
Ashish Kumar said:
7 years ago
Voltage across C1 by voltage division rule.
Vc1= Vac*(C2/(C1+C2)),
= 7.4V.
Vc1= Vac*(C2/(C1+C2)),
= 7.4V.
(1)
Ahsan Ali said:
8 years ago
C1(v) =total voltage * c2/c1 + c2.
=18*3.3/4.7+3.3.
=59.4/8.0.
=7.425.
=18*3.3/4.7+3.3.
=59.4/8.0.
=7.425.
Balgopal said:
8 years ago
Cv1=Vt*Cv2/(Cv1+Cv2).
Cv1=4.7uF,
Cv2=3.3uF,
Vt=18v,
Cv1=18v*3.3/(4.7+3.3)uF,
Cv1=7.4v.
Cv1=4.7uF,
Cv2=3.3uF,
Vt=18v,
Cv1=18v*3.3/(4.7+3.3)uF,
Cv1=7.4v.
Sreejith said:
9 years ago
Voltage divider rule not applicable for capacitor while working with dc.
Meera said:
1 decade ago
Yes, capacitor blocks DC and allows AC.
Kiran said:
1 decade ago
A transient current flows to charge the capacitor. When it gets charged then this capacitor acts as a break in the circuit. Or we can say that ist capacitor acts as DC supply for next capacitor. So same happens for next one.
Pritee said:
1 decade ago
Capacitor allows only AC to flow then how it is possible.
Mahadev said:
1 decade ago
All 18 Vdc should be across c1 because for dc capacitor will be open circuit.
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