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Electronic Devices question

2020 · 9 Jan · Shift 2 · Q51
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Electronic Devices question

2020 · 9 Jan · Shift 2 · Q51

JEE MainPhysicsElectronic DevicesMCQ+4 / −1
Two identical capacitors A and B, charged to the same potential 5V are connected in two different circuits as shown below at time t = 0. If the charge on capacitors A and B at time t = CR is QA and QB respectively, then (Here e is the base of natural logarithm) JEE Main 2020 (Online) 9th January Evening Slot Physics - Semiconductor Question 150 English
  1. A
    QA = CVe{{CV} \over e}eCV​, QB = VC2{{VC} \over 2}2VC​
  2. B
    QA = CV2{{CV} \over 2}2CV​, QB = VCe{{VC} \over e}eVC​
  3. C
    QA = VC, QB = VCe{{VC} \over e}eVC​
  4. D
    QA = VC, QB = CV
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