Problem 6: An RL circuit is shown on the right. L 2.4 H. R 49 Ω.e 7.5 V Part (a) Switch A is closed at t- 0. Express the current I in the circuit as a function of time in terms of L, R, and ε. tR I(t)1-e L) Correct! Part (b) What's the direction of the current I, counterclockwise or clockwise'? Counterclockwise Correct! Part (c) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (d) Calculate the numerical value of 1 at t-L/R s in amperes. A Part (e) Calculate the numerical value of I, in amperes, when t goes to infinity Part (f) After a long time, when the current reaches its steady value, open switch A and close switch B at the same time. Count this moment as t-0. Express the current in the circuit, I, as a function of time in terms of L, R, and e. -tR IL V Correct! Part (g) Now what is the direction of the current I, counter-clockwise or clockwise? Counterclockwise. VCorrect! Part (h) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (i) Calculate the numerical value of 1 at t-LR s in amperes. Part (j) Calculate current, in amperes, after an infinite time. ▲ Δ

Problem 6: An RL circuit is shown on the right. L 2.4 H. R 49 Ω.e 7.5 V Part (a) Switch A is closed at t- 0. Express the current I in the circuit as a function of time in terms of L, R, and ε. tR I(t)1-e L) Correct! Part (b) What's the direction of the current I, counterclockwise or clockwise'? Counterclockwise Correct! Part (c) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (d) Calculate the numerical value of 1 at t-L/R s in amperes. A Part (e) Calculate the numerical value of I, in amperes, when t goes to infinity Part (f) After a long time, when the current reaches its steady value, open switch A and close switch B at the same time. Count this moment as t-0. Express the current in the circuit, I, as a function of time in terms of L, R, and e. -tR IL V Correct! Part (g) Now what is the direction of the current I, counter-clockwise or clockwise? Counterclockwise. VCorrect! Part (h) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (i) Calculate the numerical value of 1 at t-LR s in amperes. Part (j) Calculate current, in amperes, after an infinite time. ▲ Δ

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Faraday’s Law

Section: Chapter Questions

Problem 31.48P: A motor in normal operation carries a direct current of 0.850 A when connected to a 120-V power...

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