The current in an RL circuit builds up to one-third of its steady-state value in 4.04 s. Find the inductive time constant. Number i Units

University Physics Volume 2
18th Edition
ISBN:9781938168161
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Chapter14: Inductance
Section: Chapter Questions
Problem 53P: For the circuit shown below, =20V , L = 4.0 mH, and R = 5.0 . After steady state is reached with S1...
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The current in an RL circuit builds up to one-third of its steady-state value in 4.04 s. Find the inductive time constant.
Number i
Units
Transcribed Image Text:The current in an RL circuit builds up to one-third of its steady-state value in 4.04 s. Find the inductive time constant. Number i Units
In the figure, 8 = 149 V, R₁ = 12.10, R₂ =29.70, R3 = 28.8 2, and L = 1.97 H. Immediately after switch S is closed, what are (a) i₁ and (b)
i2? (Let currents in the indicated directions have positive values and currents in the opposite directions have negative values.) A long
time later, what are (c) i₁ and (d) i2? The switch is then reopened. Just then, what are (e) i₁ and (f) i2? A long time later, what are (g) i₁ and
(h) i₂?
(a) Number i
(b) Number
(c) Number i
(d) Number i
Units
Units
Units
Units
8
iz↓
>
R₂
R₁₂
Transcribed Image Text:In the figure, 8 = 149 V, R₁ = 12.10, R₂ =29.70, R3 = 28.8 2, and L = 1.97 H. Immediately after switch S is closed, what are (a) i₁ and (b) i2? (Let currents in the indicated directions have positive values and currents in the opposite directions have negative values.) A long time later, what are (c) i₁ and (d) i2? The switch is then reopened. Just then, what are (e) i₁ and (f) i2? A long time later, what are (g) i₁ and (h) i₂? (a) Number i (b) Number (c) Number i (d) Number i Units Units Units Units 8 iz↓ > R₂ R₁₂
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