4. The two switches in the circuit seen in Figure below are synchronized. The switches have been closed for a long time before opening at t= 0. a. How many microseconds after the switches are open is the energy dissipated in the 4k resistor 10% of the initial energy stored in the 6H inductor? b. At the time calculated in (a), what percentage of the total energy stored in the inductor has been dissipated?

4. The two switches in the circuit seen in Figure below are synchronized. The switches have been closed for a long time before opening at t= 0. a. How many microseconds after the switches are open is the energy dissipated in the 4k resistor 10% of the initial energy stored in the 6H inductor? b. At the time calculated in (a), what percentage of the total energy stored in the inductor has been dissipated?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter17: Resistive-inductive Series Circuits

Section: Chapter Questions

Problem 2PA: You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor...

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Similar questions

For the sequential circuit shown in Figure, the current flowing through the inductor is zero. At t = 0, the switch moved from position a to b, where it remained for 1 s. After the 1 s delay, the switch moved from position b to position c, where it remained indefinitely. Sketch (plot) the current flowing through the inductor versus time.
2. 7.2 In the circuit shown the switch makes contact withposition b just before breaking contact with position a. This is known asa make-before-break switch and it ensures that the inductor current iscontinuous. The interval of time between “making” and “breaking” isassumed to be negligible. The switch has been in the a position for along time. At t=0 the switch is thrown from position a to position b.4. d) What percentage of the initial energy stored in the inductor isdissipated in the 90 Ω resistor 1 ms after the switch is thrown fromposition a to position b?
After the switches shown in the figure were closed for a long time, they were opened at the same time at t = 0. a) How many seconds after the switch is turned on, 30% of the energy stored on the 20 H inductor is consumed on the 40 kΩ resistor. b) What percentage of the energy stored on the inductor has been dissipated at the moment you find in a)?
Now suppose the switch in the circuit in has been inposition b for a long time. At t=0, the switch moves instantaneouslyto position a and stays there. Find the initial and final values of thecapacitor voltage, the time constant for t≥0, and the expression forthe capacitor voltage for t≥0
In the circuit shown in the figure, both switches are closed for a long time. At t = 0, the 1st switch is opened. After 35 ms, the 2nd switch opens. According to this; a) Find the current expression iL (t) of the circuit for 0 <= t <= 35 ms.b) Find the current expression iL (t) of the circuit for t> = 35 ms.c) Find what% of the energy consumed in the 18 ohm resistor is the initial energy stored in the 150mH inductor?d) What is the amount of energy consumed in 3 ohm resistor,% of the initial energy stored in 150mH inductor?e) What is the amount of energy consumed in the 6 ohm resistor,% of the initial energy stored in the 150mH inductor?
The circuit shown is at steady state before the switch closes. The inductor currents are both zero before the switch closes (i1(0) = i2(0) = 0). The voltage across the 2H-inductor is 4e-5t V for t > 0, otherwise 0V for t < 0. (a) Determine the inductor currents i1(t) and i2(t) for t ≥ 0. (b) Determine the energy stored by each inductor 200ms after the switch closes. (c) In the equivalent inductor (for the parallel inductors) determine the (i) current and the (ii) energy stored for 200 ms after the switch closes. Answer: 0.4(1 − e−5t) A, 0.1(1 − e−5t) A, 16.0mJ, 63.9mJ, 316mA, 79.9mJ
In the circuit below the switch is in positionafor a long period of time. Att=0the switch moves from position a to position b. The switch is designed such that the inductor current is continuous when moving from positionato position b. (a) Find the expression fori(t)fort≥0 (b) What is the initial voltage across the inductor just after the switch moved to positionb? (c) Does this initial voltage make sense? (d) How long does it take for the inductor voltage to equal24 Vafter the switch has been moved
Given the circuit below with the switch closed for a long time, then opening at t=0, and with the values R1=129KΩ, R2=128KΩ, R3=103KΩ, calculate the time constant, τ, for the capacitor voltage solution for at t >0.
Given the circuit below with the switch closed for a long time, then opening at t=0, and with the values R1=193KΩ, R2=186KΩ, R3=107KΩ, calculate the capacitor voltage at t =0.
Consider the circuit. The switch has been closed for a long time before opening at t=0s. Give the expression for the capacitor current for t≥0 and the total dissipated energy (in μJ) in the 10KΩ resistor 5ms after the switch has been opened.
A Hays bridge is often used for measuring the inductance of high Q coils and has theconfiguration shown in Figure 7.22. The inductance and resistance of the coil arerepresented in the figure by the symbols L1 and R1, respectively. (a) Obtain the bridge balance conditions.(b) Show that if the Q value of an unknown inductor coil is high, the expressionfor the inductance value when the bridge is balanced is independent offrequency.(c) If the Q value is high, calculate the value of the inductor if the bridge component values at balance are as follows: R2 = R3 = 1000 ohm ; C =0.02 mF
Please answer ASAP and I'll upvote, thank you. In the given circuit, switch S1 is in position A and switch S2 is open. Both switches are in these states for a very long time. At t=0, switch S1 moves from position A to B while switch S2remains open. 10ms after switch S1 moves to position B, switch S2 is closed and remains closed for 20ms only. Determine the expressions for the inductor current for 0≤t<10ms, 10ms≤t<30ms, 30ms≤t<∞, and determine the time (in ms) after switch S1 moves to position B is the current in the inductor equivalent to 30% of the initial value (at ?=0).