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

The charging time constant of a circuit consisting of an inductor is the time taken for the voltage in the inductor to become __________ % of the initial voltage. Correct Answer 37

We know that: V=V0(1-e-tR/L). When time constant=t, we have: V=V0(1-e-1) = 0.37*V0. Hence the time constant is the time taken for the charge in an inductive circuit to become 0.37 times its initial charge.

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