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n the circuit shown, initially there is no charge on apacitors and keys \( \mathrm{S}_{1} \) and \( \mathrm{S}_{2} \) are open. The values of the
\( \mathrm{P} \) apacitors are \( \mathrm{C}_{1}=10^{2} \mu \mathrm{F}, \mathrm{C}_{2}=30 \mu \mathrm{F} \) and

W \( \mathrm{I}_{3}=\mathrm{C}_{4}=80 \mu \mathrm{F} \). [JEE. Advanced \( -2019 \) ]
Which of the statement(s)is/are correct ?
a) The keys \( S_{1} \) is kept closed for long time such that capacitors are fully charged. Now key \( \mathrm{S}_{2} \) is closed, at this time, the instantaneous current across \( 30 \Omega \) resistor (between points \( P \) and \( Q \) ) will be \( 0.2 \mathrm{~A} \) (round off to \( 1^{s t} \) decimal place).
b) If key \( \mathrm{S}_{1} \) is kept closed for long time such that capacitors are fully charged, the voltage difference between points \( P \) and \( Q \) will be \( 10 \mathrm{~V} \).
c) At time \( t=0 \), the key \( S_{1} \) is closed, the instantaneous current in the closed circuit will be \( 25 \mathrm{~mA} \).
d) If key \( \mathrm{S}_{1} \) is kept closed for long time such that capacitors are fully charged, the voltage across the capacitors \( \mathrm{C}_{1} \) will be \( 4 \mathrm{~V} \).
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