Two capacitors of capacitances C and 2C are charged to potential differences V and 2 V, respectively. These are then connected in parallel in such a manner that the positive terminal of one is connected to the negative terminal of the other. The final energy of this configuration is:
Two capacitors of capacitances C and 2C are charged to potential differences V and 2 V, respectively. These are then connected in parallel in such a manner that the positive terminal of one is connected to the negative terminal of the other. The final energy of this configuration is:
Option 1 -
(3/2)CV²
Option 2 -
(25/6)CV²
Option 3 -
(9/2)CV²
Option 4 -
zero
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1 Answer
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Correct Option - 1
Detailed Solution:
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When positive charge moves from low potential to high potential region, work is done against electric field and potential energy increases.
Charge remains same
Charge on C1 = CV
Charge on C2 = 4CV
When connected in parallel
x = 50
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