Physics · 2021
JEE Main · 4 August 2021, Shift 2 · Q5
A choke coil is needed to operate an arc lamp at 160 V (rms) and 50 Hz. The arc lamp has an effective resistance of 5 Ω when running at 10 A (rms).…
A choke coil is needed to operate an arc lamp at $\displaystyle 160$ V (rms) and $\displaystyle 50$ Hz. The arc lamp has an effective resistance of $\displaystyle 5 \Omega$ when running at $\displaystyle 10$ A (rms). The inductance of the choke coil is -
Official answer
(1)
$\displaystyle 4.84 \times 10^{-2} \mathrm{H}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.