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Five identical capacitor plates are arranged such that they make four capacitors each of 2μF. The plates are connected to a source of voltage 10 V. The total charge on plate C is:

a
+20 μC
b
+40 μC
c
+60 μC
d
+80 μC

detailed solution

Correct option is B

As alternative plates are connected to the left and right side of the battery, four capacitors are connected in parallel combination and charge across each isq = CVTwo surfaces of plate C marks two capacitors, one with B and other with D and C  is connected to positive terminal of the battery so total charge on plate C is given asqC=2CV=+40μC

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