Consider the situation shown in the figure. The capacitor A has charge q on it, whereas B is uncharged. The charge appearing on the capacitor B a long time after the switch S is closed, is:
A
Zero
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B
q2
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C
q
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D
2q
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Solution
The correct option is AZero When switch S is closed, there is no transfer of charge from capacitor A to capacitor B because the charge –q of A is held by its charge +q.