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Q.

Two capacitors of 2 μF and 3 μF are charged to 150 volt and 120 volt respectively. The plates of capacitor are connected as shown in the figure. A discharged capacitor of capacity 1.5 μF falls to the free ends of the wire. Then

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a

charge on the 2 μF capacitor is 120 μC

b

charge on the 1.5 μF capacitors is 180 μC

c

charge flows through A from right to left.

d

charge flows through A from left to right.

answer is A, B, C.

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Detailed Solution

When the capacitor of capacity 1.5 μF come into contact with 2 μF and 3 μF, the charge distribution takes places as shown below.

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 Applying loop law, OPBDO,

q1.5360q3300q2=0

q=180μC

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