Physics · 2021
JEE Main · 25 July 2021, Shift 2 · Q15
A 10 Ω resistance is connected across 220 V -50 Hz AC supply. The time taken by the current to change from its maximum value to the rms value is:
A $\displaystyle 10 \Omega$ resistance is connected across $\displaystyle 220 \mathrm{~V}-50 \mathrm{~Hz} \mathrm{AC}$ supply. The time taken by the current to change from its maximum value to the rms value is :
Official answer
(1)
2.$\displaystyle 5$ ms
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.