Four capacitors are connected as shown in the figure below. (Let C = 18.0 F.) (a

Question

Four capacitors are connected as shown in the figure below. (Let C = 18.0 F.)

(a) Find the equivalent capacitance between points a and b.

(b) Calculate the charge on each of the following capacitors, taking Vab = 18.0 V.

20.0 F capacitor

C6.00 F capacitor

C3.00 F capacitor

capacitor C

Four capacitors are connected as shown in the figure below. (Let C = 18.0 F.) (a) Find the equivalent capacitance between points a and b. (b) Calculate the charge on each of the following capacitors, taking Vab = 18.0 V. 20.0 F capacitor C6.00 F capacitor C3.00 F capacitor capacitor C

Explanation / Answer

Remembet these for future help :

if C1 and C2 are the individual capacitor that re connected in series,

then their resultant capaciatnce

1/Cnet = 1/C1+1/C2 or Cnet   = C1C2/(C1+C2)

if c1 and C2 are connected in parallel, then their effective capacitancen
is Cnet = C1+C2

also in sereis combination same amount of charge passes through each of the capacitiors

and in parallel combination, same PD (voltage) exists across each of the capacitor

so here now:

C and 3uF are in series --------> 18* 3/21 = 2.57 uF

2.57 in parallel with 6uF ----------> 8.57 uF

8.57 uF inseries with 20uF----------> 20*8.57/(28.57)

Cnet = 6uF

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