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The key K (figure) is connected in turn to each of the contacts over short identical time intervals so that the change in the charge on the capacitor over each connection is small. The final charge qr on the capacitor is :
  • a)
  • b)
  • c)
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The keyK(figure) is connected in turn to each of the contacts over sho...
As the key is connected to 1 and 2 frequently and at equal intervals, the two emf’s Eand E2 behave as dc sources in continuous contact.
The potential due to the two cells is : 
Hence the charge on the capacitor is 
The correct answer is: 
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The keyK(figure) is connected in turn to each of the contacts over sho...
As the key is connected to 1 and 2 frequently and at equal intervals, the two emf’s Eand E2 behave as dc sources in continuous contact.
The potential due to the two cells is : 
Hence the charge on the capacitor is 
The correct answer is: 
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The keyK(figure) is connected in turn to each of the contacts over sho...
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The keyK(figure) is connected in turn to each of the contacts over short identical time intervals so that the change in the charge on the capacitor over each connection is small. The final chargeqron the capacitor is :a)b)c)d)None of theseCorrect answer is option 'A'. Can you explain this answer?
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