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JEE Main 2006
Exam
JEE Main
Year
2006
Subject
Physics
Chapter
Alternating Current

JEE Main 2006 · Physics · Alternating Current

An inductor (L=100 mH) , a resistor (R=100 ) and a battery (E=100...

An inductor (L=100mH)(L=100 \mathrm{mH}), a resistor (R=100Ω)(R=100 \Omega) and a battery (E=100 V)(E=100 \mathrm{~V}) are initially connected in series as shown in the figure. After a long time the battery is disconnected after short circuiting the points AA and BB. The current in the circuit 1 mm1 \mathrm{~mm} after the circuit is An inductor (L=100 mH) , a resistor (R=100 ) and a battery (E=100 ~V) are initially connected in series as shown in the

Options

  1. A1 A1 \mathrm{~A}
  2. B1/eA1 / \mathrm{e} \mathrm{A}
  3. Ce Ae \mathrm{~A}
  4. D0.1 A0.1 \mathrm{~A}

Correct answer

B. 1/eA1 / \mathrm{e} \mathrm{A}

Step-by-step solution

I=\mathrm{I}=\mathrm{I}0e−Rt/L=1eA_0 \mathrm{e}^{-\mathrm{Rt} / \mathrm{L}}=\frac{1}{\mathrm{e}} \mathrm{A}
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