*Chapter 27, Problem 065 GO In the figure R1 = 10.0 k2, R2 = 15.6 k, C = 0.418 µF, and the ideal battery has emf ɛ = 20.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 4.50 ms? %D C + R2 R1 Number 1 Units

*Chapter 27, Problem 065 GO In the figure R1 = 10.0 k2, R2 = 15.6 k, C = 0.418 µF, and the ideal battery has emf ɛ = 20.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 4.50 ms? %D C + R2 R1 Number 1 Units

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Direct-current Circuits

Section: Chapter Questions

Problem 26P: In the circuit of Figure P27.25, the switch S has been open for a long time. It is then suddenly...

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In the circuit of Figure P27.25, the switch S has been open for a long time. It is then suddenly closed. Determine the time constant (a) before the switch is closed and (b) after the switch is closed. (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. Figure P27.25 Problems 25 and 26.
In the circuit of Figure P27.25, the switch S has been open for a long time. It is then suddenly closed. Take = 10.0 V, R1 = 50.0 k, R2 = 100 k, and C = 10.0 F. Determine the time constant (a) before the switch is closed and (b) after the switch is closed. (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. Figure P27.25 Problems 25 and 26.
(a) What is the unknown emfx in a potentiometer that balances when Rxis 10.0 O, and balances when Rsis 15.0for a standard 3.000-V emf? (b) The same emfx is placed in the same potentiometer, which now balances when Rsis 15.0for a standard emf of 3.100 V. At what resistance Rxwill the potentiometer balance?
(a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious bums?
In the circuit of Figure P21.57, the switch S has been open for a long time. It is then suddenly closed. Take = 10.0 V, R1 = 50.0 k, R2 = 100 k, and C = 10.0 F. Determine the time constant (a) before the switch is closed and (b) after the switch is closed. (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time.
R1 S R3. R2 4. Determine in the current in each resistor given that R1 = R2 = R3 = 12, the capacitance C = 0.5 µF, and potential across the batter of E = 2V when the switch is closed at t = 0. Determine then after some time (t = x) after the switch is closed the currents in each resistor.
In the figure R₁ = 9.69 kN, R₂ = 15.9 kQ, C = 0.379 μF, and the ideal battery has emf & = 20.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 3.90 ms? E Number i + Fu R₁ www R₂ с Units A
In the figure R₁ = 9.69 kN, R₂ = 15.9 kn, C = 0.379 μF, and the ideal battery has emf ε =20.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 3.90 ms? E Number i + Fu R₁ www R₂ с Units A
In the figure R₁ = 9.42 kQ, R₂ = 15.7 kQ, C = 0.439 µF, and the ideal battery has emf & = 18.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 4.10 ms? Number Units R₁ R₂ C
15V a. + AM 10.2. 4 t=0 um 45² 652 im + V 1 ic (t) b. Assume switch has been closed for Find a mathematical expression for Vc it capacitor is initially uncharged and the switch is closed at t = 0. Sketch Vc lt). 20m F a long time. opening Fird an expression for ic immediately after the switch and sketch it.
The emfs in the figure below are &₁ = 5.00 V and E2 = 18.0 V. The resistances are R₁ when the switch is in the following states. (a) open I1 = 0.188 I2 = 0.188 I3 = 0.188 14 = 0 I1 (b) closed R4 = I₂ = I3 = 14 A A A A A A X www R₁ R₂ ww R3 + E2 0.8285 Your response differs from the correct answer by more than 100%. A .106 Your response differs from the correct answer by more than 100%. A 18.00, R₂ = 30.5 , R3 = 47.50, and R4 58.0 . Find the magnitude of the current in each resistor
In the figure R₁ = 9.42 kn, R₂ = 15.7 kQ, C = 0.439 μF, and the ideal battery has emf & = 18.0 V. First, the switch is closed a long time so that the steady state is reached. Then the switch is opened at time t = 0. What is the current in resistor 2 at t = 4.10 ms? Number i Units R₁ www R₂