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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Two capacitors of 2 $μ$ F and 3 $μ$ F 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 $μ$ F falls to the free ends of the wire. Then

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charge on the 2 $μ$ F capacitor is 120 $μ$ C

charge on the 1.5 $μ$ F capacitors is 180 $μ$ C

charge flows through A from right to left.

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 $μ$ F come into contact with 2 $μ$ F and 3 $μ$ F, the charge distribution takes places as shown below.

Applying loop law, OPBDO,

$\frac{q}{1 .5} - \frac{360 - q}{3} - \frac{300 - q}{2} = 0$

$\Rightarrow q = 180 μC$

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