In the given circuit, find the current I in the 3-kΩ resistor at time t = 2 sec.

F1 Raju Madhuri 13.04.2021 D 10

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SSC JE EE Previous Paper 11 (Held on: 24 March 2021 Morning)
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  1. 4 mA
  2. 2 mA
  3. 4 A
  4. 2 A

Answer (Detailed Solution Below)

Option 2 : 2 mA
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F1 Raju Madhuri 13.04.2021 D 10

At time t = 2 sec

First switch will be in the open condition because it closes at 5th second

Second switch will be in a closed state because it gets opened at 3rd second.

So circuit at t = 2 s reduces to

F2 Shubham B 4.6.21 Pallavi D1

∴ i = 6 / 3000 A

i = 2 mA

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