Question: The current in an RL circuit is zero at time t = 0 and increases to half its final value in 4.0 s. (a) What

The current in an RL circuit is zero at time t = 0 and increases to half its final value in 4.0 s.

(a) What is the time constant of this circuit?

(b) If the total resistance is 5 Ω, what is the self-inductance?

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