Home Maths JEE - Advanced Previous Year Paper JEE-Advanced-2019-Paper-1 In the circuit shown, initially there is no …
Maths JEE - Advanced Previous Year Paper JEE-Advanced-2019-Paper-1 Single Correct MCQ
Published on: August 14, 2026

In the circuit shown, initially there is no charge on capacitors and keys Si and S 2 are open. The values of the capacitors are C 1 = 10 F, C 2 = 30 F and C 3 = C 4 = 80 F. Which of the statement(s) is/are correct?

A
The key Si is kept closed for long time such that capacitors are fully charge(d) Now key S 2 is closed, at this time, the instantaneous current across 30Q resistor (between points P and Q) will be 0.2 A (round off to 1 st decimal place).
B
If key S 1 is kept closed for long time such that capacitors are fully charged, the voltage across the capacitor d will be 4V.
C
At time t = 0, the key Si is closed, the instantaneous current in the closed circuit will be 25 mA
D
If key Si is kept closed for long time such that capacitors are fully charged, the voltage difference between points P and Q will be 10 V.

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The correct answer is:
CHECK THE SOLUTION.

(b, c)

S 1 closed for long time

V P -V Q =4V

t = 0, key S is closed

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