25 and 26 **Problem Set on Inductors:****25.** Find the magnetic energy stored in the inductor when it reaches the steady state (time = infinity).a. \(5.8 \times 10^{-9} \, \text{J}\) b. \(5.8 \times 10^{-3} \, \text{J}\) c. \(0.015 \, \text{J}\) d. none of these **26.** If the switch is thrown from a to b suddenly, how long will it take for the current to drop to 0.02 A?a. \(1.82 \, \mu\text{s}\) b. \(2.73 \, \mu\text{s}\) c. \(3.51 \, \mu\text{s}\) d. \(4.82 \, \mu\text{s}\) e. none of these **27.** What is the voltage across the inductor when the current drops down to 0.02 A? (Hint: Use \(V_L = L(\text{di/dt})\) by taking the derivative.)a. \(2.00 \, \text{V}\) b. \(3.00 \, \text{V}\) c. \(4.00 \, \text{V}\) d. \(5.00 \, \text{V}\) e. none of these **28.** Two inductors, \(L_1 = 600 \, \text{mH}\) and \(L_2 = 400 \, \text{mH}\), are connected in parallel. What is the equivalent inductance?a. \(100 \, \text{mH}\) b. \(292 \, \text{mH}\) c. \(200 \, \text{mH}\) d. \(240 \, \text{mH}\) For the RL circuit shown in the diagram, the given parameters are:- Resistance (R) = 150 Ohms- Inductance (L) = 0.38 mH- Voltage (E) = 12.00 V**Diagram:**The circuit diagram includes a voltage source \(E\), a switch, a resistor \(R\), and an inductor \(L\) arranged in series. The switch has two positions: \(a\) and \(b\).**Questions:**23. Find the time constant.- a. 2.53 ms- b. 2.53 μs- c. 2.53 sec- d. none of these24. When the switch is thrown to point \(a\), what is the current at \(t = 5.0 \, \mu s\)?- a. 28.7 mA- b. 34.7 mA- c. 68.9 mA- d. 11.0 mA

Given, RL circuit (25) The current at steady state will be I=εRI=12.00150I=0.08 A Then stored energy is U=12LI2U=12*0.38*10-3*0.082U=1.22*10-6 J (d) None of these(26) For discharging circuit the current is I=I0e-t/τ0.02=0.08e-t/τ0.25=e-t/τtaking logarithm both sidesln(0.25)=-tRL-1.386*L/R=-tt=1.386*0.38*10-3150t=3.51*10-6st=3.51μs Option(c)Answer: 25. (d) none of these 26. (c) 3.51 microseconds

Science

Physics

25. find the magnetic energy stored in inductor when it reaches the steady state ( time = infinity). d. none of these a. 5.8 x 109 J b. 5.8 x 103 J c. 0.015 J 26. If the switch is thrown from a to b suddenly, how long will it take for the current to drop to 0.02 A? c. 3.51 us a. 1.82 us b. 2.73 µs d. 4.82 us e. none of these

25. find the magnetic energy stored in inductor when it reaches the steady state ( time = infinity). d. none of these a. 5.8 x 109 J b. 5.8 x 103 J c. 0.015 J 26. If the switch is thrown from a to b suddenly, how long will it take for the current to drop to 0.02 A? c. 3.51 us a. 1.82 us b. 2.73 µs d. 4.82 us e. none of these

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Number 53 and 54
16. Please help me answer this physics question
21-30 only
Question 4 .
10.fast as possible please
please help with questions 29,30,31
Problem 4: Speed deamplifier. In the figure above on the right, block 1 of mass m1 slides along an x-axis on a frictionless floor at speed 4 m/sec.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m2 = 2m1. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass mz = 4m1. What then is the speed of block 3? Answer: 16 m/sec or 1.78 m/sec.