Physics · 2021
JEE Main · 18 March 2021, Shift 1 · Q6
An AC source rated 220 V, 50 Hz is connected to a resistor. The time taken by the current to change from its maximum to the rms value is:
An AC source rated $\displaystyle 220 \mathrm{~V}, 50 \mathrm{~Hz}$ is connected to a resistor. The time taken by the current to change from its maximum 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.