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The charging time constant of a circuit consisting of an inductor is the time taken for the current in the inductor to become __________% of the initial current.

The charging time constant of a circuit consisting of an inductor is the time taken for the current in the inductor to become __________% of the initial current. Correct Answer 63

We know that: i=i0(1-e-tR/L). When t=L/R, we have: i=i0(1-e-1) = 0.63*i0. Hence the time constant is the time taken for the current in an inductive circuit to become 0.63 times its initial current.

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