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Rows of capacitors containing 1, 2, 4, 8, ……., oocapacitors, each of capacitance 2F, are connected in parallel as shown in figure. The potential difference across ABis 10 V, then |
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Answer» TOTAL capacitance across AB is 4F Capacities in different arms are `2F,1F,(1)/(2)F,(1)/(4)F,`.... `C_(eff)=2+1+(1)/(2)+(1)/(4)+....oo=2(1+(1)/(2)+(1)/(4)+...)=4F`. As `PD` across each row is same, THUS the charge will be MAXIMUM across the cpacitor in first now |
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