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Physics · 2013
JEE Main 2013 · 2013-04-07 Offline · Q34
In an LCR circuit as shown below both switches are open initially. Now switch S_1 is closed, S_2 kept open. (q is charge on the capacitor and τ= RC…
In an LCR circuit as shown below both switches are open initially. Now switch $\displaystyle \mathrm{S}_1$ is closed, $\displaystyle \mathrm{S}_2$ kept open. (q is charge on the capacitor and $\displaystyle \tau=\mathrm{RC}$ is Capacitive time constant). Which of the following statement is correct ?
Official answer
(4)
At $\displaystyle \mathrm{t}=2 \tau, \mathrm{q}=\mathrm{CV}\left(1-\mathrm{e}^{-2}\right)$
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JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.