For the capacitor network shown in the figure below (Figure 1), a constant poten
ID: 1865489 • Letter: F
Question
For the capacitor network shown in the figure below (Figure 1), a constant potential difference of 39 V is maintained across points a and b by a battery. Which of the following statements about this network is correct? (There may be more than one correct choice.)
D. The equivalent capacitance of the network is 60 ?F.
A. The 10 ?F and 20 ?F capacitors have equal charges. B. The charge on the 20 ?F capacitor is twice the charge on the 10 ?F capacitor. C. The potential difference across the 10 ?F capacitor is the same as the potential difference across the 20 ?F capacitor.D. The equivalent capacitance of the network is 60 ?F.
Explanation / Answer
From frigure it is clear that 10 and 20 uF capacitors are connected in series so they share same value of charge.
Equivalent capacitance
Ceq= 30+(10*20)/(1+20)= 36.67 ohm
Only Option (a) is correct.
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