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NEET UG PHYSICS MCQ: ALTERNATING CURRENT

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In an LRLR-circuit time constant is that time in which current grows from zero to the value (where I0{I_0} is the steady state current)
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Correct option: A
0.63  I00.63\,\,{I_0}
Option A (0.63  I00.63 \,\,{I_0}) is correct because the current grows to approximately 63% of its steady-state value in one time constant in an LR circuit.

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