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Current Electricity question

2019 · Shift 1 · Q45
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Current Electricity question

2019 · Shift 1 · Q45

JEE AdvancedPhysicsCurrent ElectricityMultiple correct+4 / −1
In the circuit shown, initially there is no charge on the capacitors and keys S1 and S2 are open. The values of the capacitors are C1 = 10 μ\muμ F, C2 = 30 μ\muμ F and C3 = C4 = 80 μ\muμ F. JEE Advanced 2019 Paper 1 Offline Physics - Current Electricity Question 29 English Which of the statement(s) is/are correct?
  1. A
    The key S1 is kept closed for long time such that capacitors are fully charged. Now, key S2 is closed, at this time, the instantaneous current across 30 Ω\OmegaΩ resistor (between points P and Q) will be 0.2 A (round off to 1st decimal place).
  2. B
    If key S1 is kept closed for long time such that capacitors are fully charged, the voltage across the capacitor C1 will be 4V.
  3. C
    At time t = 0, the key S1 is closed, the instantaneous current in the closed circuit will be 25 mA.
  4. D
    If key S1 is kept closed for long time such that the capacitors are fully charged, the voltage difference between points P and Q will be 10 V.
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