Question 1 The switch in the circuit of Figure 1 has been closed for a long time. At t = 0, the switch is opened. Calculate the following when Vs = 10 V; i) current and voltage of the inductor. ii) time taken when inductor current decays to 50% from its initial value. iii) energy absorbed by 12 resistor at t = 3ms. Vs t = 0 4 0 14 Q 1/8 H io 12 Q Figure 1

Question 1 The switch in the circuit of Figure 1 has been closed for a long time. At t = 0, the switch is opened. Calculate the following when Vs = 10 V; i) current and voltage of the inductor. ii) time taken when inductor current decays to 50% from its initial value. iii) energy absorbed by 12 resistor at t = 3ms. Vs t = 0 4 0 14 Q 1/8 H io 12 Q Figure 1

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...

See similar textbooks

Similar questions

a.)If the current through a 1-mH inductor is i(t) = 20 cos 100t mA, find the terminal voltage and the energy stored. b.)The terminal voltage of a 2-H inductor is v = 10(1 – t ) V. Find the current flowing through it at t = 4 s and the energy stored in it at t = 4 s. Assume i(0)=2A.
A circuit with a supply voltage of 2.5 V is being powered through a package. The packagehas a resistance of 100 m and a certain inductance L. The circuit requires at least 2.25 Vto function correctly. If this voltage is required in a time of 1ns, calculate the effectiveinductance L for the package.
Please help with the 6 questions: In the circuit shown in the figure, the inductor has inductance ?=2.50 HL=2.50 H and negligible internal resistance. The battery has a voltage of ?b=11.0 VVb=11.0 V and is connected in series to a resistor of resistance ?1=15.0 Ω.R1=15.0 Ω. A second resistor has a resistance of ?2=185 Ω.R2=185 Ω. The switch ?S has been closed for a long time. At time ?=0,t=0, the switch is opened. What is the current ?b,0Ib,0 in the battery, the current ?2,0I2,0 in resistor ?2,R2, and the current ?L,0IL,0 in the inductor at ?=0.t=0. What is the current ?b,∞Ib,∞ in the battery, the current ?2,∞I2,∞ in resistor ?2,R2, and the current ?L,∞IL,∞ in the inductor after the switch is opened for a long time (i.e., ?=∞).
A resistance of 100 Ω, an inductance of 0.1 H, and a capacitance of 5(10−5) F are connected in series.If the total electromotive force is given by 110 sin 377t, such that at t = 0,Q = 0, and i = 0, find thecurrent for t > 0.
The two parallel inductors shown are connected across the terminals of a black box at t=0. The resulting voltage v for t>0 is known to be 12e−t V. It is also known that i1(0)=2 A and i2(0)=4 A. a. Replace the original inductors with an equivalent inductor and find i(t) for t≥0. b. Find i1(t) for t≥0. c. Find i2(t) for t≥0. d. How much energy is delivered to the black box in the time interval 0≤t<∞? e. How much energy was initially stored in the parallel inductors? f. How much energy is trapped in the ideal inductors? g. Show that your solutions for i1 and i2 agree with the answer obtained in (f).
All capacitors were initially discharged. at t = 0, S1 is placed at position 1 and S2 is closed. During this phase, it has been determined that Eth and Rth seen by the equivalent capacitor are, respectively, 19 V and 3.5 kΩ. The equivalent capacitor is 1.50µF. Calculate the value of the current iT immediately after the switching occurred. Enter your answer in mA rounded to 2 decimal places. At t = 15 ms, S1 is placed at position 2 and S2 is kept closed. At t = 25 ms, S1 is kept at position 2 and S2 is opened. Data: R1 = 5 kΩ, R2 = 6 kΩ, R4 = 5 kΩ, R5 = 16 kΩ, R6 = 12.5 kΩ;
In the circuit shown, let Eo= 10[V], R = 3[Ω], and L =0.6[H]. The switch is closed at time t = 0. From time t = 0 to t = L/R. (a) Find the total energy that has been supplied by the battery. and b) Calculate the total energy that has been dissipated in the resistor, and (c) Determine the energy that has been stored in the inductor. (Hint: Find the rates as functions of time and integrate from t= 0 to t = L/R.)
The voltage pulse applied to the 100 mH inductor shown is 0 for t<0 and is given by the expression v(t)=20te−10t V for t>0. Also assume i=0 for t≤0. Sketch the current as a function of time.
7. 7.27 In the circuit the voltage and current expressions are v=48e−25t V, t≥0;i=12e−25t mA, t≥0+.Find1. a) R.2. b) C.3. c) τ (in milliseconds).4. d) the initial energy stored in the capacitor.5. e) the amount of energy that has been dissipated by the resistor 60ms after the voltage begins to decay.
1. Theoretically calculate the voltage across the capacitor in the circuit of Figure 1 when t = 0 s, 5 s, 10 s, 20 s, 30 s, 40 s, and 60 s, assuming that the circuit is under DC conditions when t < 0 s and the switch is opened at t = 0 s. 2. Compare the calculated voltage at t = 20 s with the experimentally measured ∆?.
The switch in the circuit below has been in position a for a long time. At time t = 0 the switch is thrown to position b. You are given the data: Vb = 24 V, C = 10 μF. Vc is the voltage across the capacitor. If the charge on the capacitor at time t =0.3 msec after the switch is thrown is 53.6 μC, what is the value of the resistor R? a) 40 Ω b) 0 Ω c) 20 Ω d) Not enough information.
Short Problem: Given a parallel RLC circuit comprised of the following element: 62.52-ohm resistor, ideal inductor with reactance of 33.15 ohms; and a capacitor with reactance of 6.11 ohms. Compute for true power in watts given an ac voltage source of 100 cis 0 volts. PLEASE ANSWER WITHIN 30 MINUTES. Round off to the nearest 4 decimal places. No Scientific notation. Do not round off in the middle of calculation. Use stored values. Write the numerical values only. No units in your final answer. Spaces are not allowed.