In the circuit shown, initially there is no charge on capacitors and keys S₁ and S₂ are open. The values of the capacitors are C₁= 10 μF, C₂ = 30 μF and C₃= C₄ = 80 μF.Which of the statement(s) is/are correct?
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 30Ω resistor (between points P and Q) will be 0.2 A (round off to 1 st decimal place).
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.
C. At time t = 0, the key S₁ is closed, the instantaneous current in the closed circuit will be 25 mA
D. If key S₁ is kept closed for long time such that capacitors are fully charged, the voltage difference between points P and Q will be 10 V.
Answers
In the circuit shown, initially there is no charge on capacitors and keys S₁ and S₂ are open. The values of the capacitors are C₁= 10 μF, C₂ = 30 μF and C₃= C₄ = 80 μF.Which of the statement(s) is/are correct?
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 30Ω resistor (between points P and Q) will be 0.2 A (round off to 1 st decimal place).
B. If key S₁ is kept closed for long time such that capacitors are fully charged, the voltage across the capacitor C₁ will b
C. At time t = 0, the key S₁ is closed, the instantaneous current in the closed circuit will be 25 mA
D. If key S₁ is kept closed for long time such that capacitors are fully charged, the voltage difference between points P and Q will be 10 V.