Physics Q42 – JEE-MAIN 2026 | StemCET

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Home Physics Current ElectricityQuestion #39

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Ninja Strategy•Lower Bound Estimation

The total resistance must be greater than 100 Ω, so the time constant must be greater than $100 Ω \times 20 μ F = 2.0 \times 10^{- 3}$ s, which implies $α > 2.0$ .