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/* PHYS 230 HW O chapter x + O Not secure | www.webassign.net/web/Student/Assignment-Responses/submit?dep=17450179 e - o X * 0 ! My Notes • Ask Your Teacher 9. • 114 points | Previous Answers SerPSET9 32.P.024. Consider the circuit in the figure below, taking E = 6.00 V, L = 4.80 mH, and R = 3.400. T (a) What is the inductive time constant of the circuit? 1.411764706 ms (b) Calculate the current in the circuit 250 ps after the switch is closed. Enter a number, uation giving the current as a function of time in an RL circuit? A (c) What is the value of the final steady-state current? What is the effect of an inductor if the current as a steady value? A (d) After what time interval does the current reach 80.0% of its maximum value? ms Need Help? Read It | Submit Answer Save Progress | Practice Another Version 10. A noints Previous Answers SerpSETA 32 BAR O type here to search Mm Notes > Ask Your Teacher AD 40. 1732017 Q Aan de $36 PM O

Explanation / Answer

b)

t = 0.250 ms

T = time constant = 1.41 ms

Io = maximum current = E/R = 6/3.4 = 1.76 A

current at any time is given as

I = Io (1 - e-t/T)

I = (1.76) (1 - e-0.250/1.41)

I = 0.286 A

c)

Io = final steady state current = 1.76 A

d)

I = Io (1 - e-t/T)

0.80 Io = Io (1 - e-t/1.41)

t = 2.3 sec

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