Physics · 2025
JEE Main · 22 January 2025, Shift 2 · Q39
A series LCR circuit is connected to an alternating source of emf E. The current amplitude at resonant frequency is I_0. If the value of resistance R…
A series LCR circuit is connected to an alternating source of emf E. The current amplitude at resonant frequency is $\displaystyle \mathrm{I}_0$. If the value of resistance R becomes twice of its initial value then amplitude of current at resonance will be
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \frac{\mathrm{I}_0}{2}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.