An emf of 20 V is applied at time t = 0 to a circuit containing in series 10 mH inductor and 5 W resistor. The ratio of the currents at time t = ¥ and at t = 40 s is close to: (Take e 2 = 7.389)


An emf of $20 \mathrm{~V}$ is applied at time $t=0$ to a circuit containing in series $10 \mathrm{mH}$ inductor and $5 \Omega$ resistor. The ratio of the currents at time $t=\infty$ and at $t=40 \mathrm{~s}$ is close to:

(Take $e^{2}=7.389$ )

  1. $1.06$

  2. $1.15$

  3. $1.46$

  4. $0.84$

Correct Option: 1

JEE Main Previous Year 1 Question of JEE Main from Physics Alternating Current chapter.
JEE Main Previous Year 7 Jan. 2020 II


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