The switch in the figure has been open for a long time. It is closed at t = 0 s. (Figure 1) What is the current through the 20N resistor immediately after the switch is closed? Express your answer to two significant figures and include the appropriate units. ? Value Units Submit Request Answer Part B What is the current through the 20 N resistor after the switch has been closed a long time? Express your answer to two significant figures and include the appropriate units. HA Value Units Figure < 1 of 1 > Submit Request Answer 10 0 Part C What is the current through the 20N resistor immediately after the switch is reopened? 30 V 20 Ω 10 mH Express your answer to two significant figures and include the appropriate units. µA Value Units

The switch in the figure has been open for a long time. It is closed at t = 0 s. (Figure 1) What is the current through the 20N resistor immediately after the switch is closed? Express your answer to two significant figures and include the appropriate units. ? Value Units Submit Request Answer Part B What is the current through the 20 N resistor after the switch has been closed a long time? Express your answer to two significant figures and include the appropriate units. HA Value Units Figure < 1 of 1 > Submit Request Answer 10 0 Part C What is the current through the 20N resistor immediately after the switch is reopened? 30 V 20 Ω 10 mH Express your answer to two significant figures and include the appropriate units. µA Value Units

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Direct-current Circuits

Section: Chapter Questions

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

See similar textbooks

Similar questions

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 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.
What is the current flowing through the battery immediately after the switch is closed and through the battery a long time after the switch has been closed? Use the following data: EMF = 14.5 V, R1 = 90.0 Ω, R2 = 10.0 Ω, L = 28.0 mH.
In the figure below, R1 =10.0kΩ, R2 =15.0kΩ, C=0.40μF, and the ideal battery has an emf E=20.0V. First, the switch is closed until the system reaches steady state; then, the switch is opened at time t = 0 and the capacitor starts to discharge. What is the current in R2 at t = 3.00 ms?
In the displayed circuit we have left the S switch open for a long time. Then we close it. Suppose that ε = 10 V, R1 = 50 kΩ, R2 = 100 kΩ and C = 10 mF. Find the value of the time constant: a) Before closing the switch. b) After closing the switch. c) Suppose we turn off the switch at time t = 0. Find the current flowing through the switch as a function of time.
At time t=0, the switch in the circuit shown in the figure is closed. After a sufficiently long time, steady currents I1, I2, and I3 flow through resistors R1, R2, and R3 , respectively. Determine these three currents.
The switch shown has been in position a for a long time. It is changed to position b at t = 0 s. What are the charge Q on the capacitor and the current I through the resistor (a) immediately after the switch is changed? (b) At t = 50 ms? (c) At t = 200 μs?
In the accompanying figure, the rails, connecting end piece, and rod all have a resistance per unit length of 2.0 Ω/cm. The rod moves to the left at v = 3.0 m/s. If B = 0.75 T everywhere in the region, what is the current in the circuit (a) when a = 8.0 cm? (b) when a = 5.0 cm? Specify also the sense of the current flow.
Considering the closed path and current values in the figure ∮H⃗ .the value of the expression dl→ is true in which of the following options? Please select one: A. -20 A B. 30 A C. 0 D. 10 A E. -10 A
The switch in the figure has been in position a for a long time. It is changed to position b at t = 0 s. the charge Q on the capacitor immediately after the switch is changed is 18 μC the current I through the resistor immediately after the switch is changed is Part A What is the charge Q on the capacitor at t = 40 μs?Express your answer with the appropriate units. Part B What is the current I through the resistor at t = 40 μs?Express your answer with the appropriate units. Part C what is the charge Q on the capacitor at t = 200 μs?Express your answer with the appropriate units. Part D What is the current I through the resistor at t = 200 μs?Express your answer with the appropriate units.
3.1 A wire of diameter d, length l and resistivity ρ forms a circular loop. A current entersand leaves the loop at points P and Q as shown in the Figure. Show that the resistance R ofthe wire is given by the expression (4) R = 4ρx(l − x) / π*d^2*l
In the circuit below, the switch has been in the open position for a long time. At t=0, the switch is turned on. If the current at time t=3.3 ms reaches half of its maximum value, L=68 mH, and ℰ=17 V, find:the time constant τ= ms,the resistance R= Ω,the maximum value of the current, Imax= A.If the switch is open again, after what time, the current will reach the half of its value?t1/2= ms.