The diagram below shows a RC circuit which consists of one capacitor and two identical light bulbs. The resistance of each light bulb is 20 N and the circuit is driven by an ideal emf device with & = 12 Volts. The switch is closed at t = 0. %3D (a) In class, I said the following: "At t = 0, an uncharged capacitor acts as an electrical short and may be conceptually replaced by an ideal wire ". Apply this idea and compare the brightness of each bulb at t =0 right after the switch is closed. (b) In class, I said the following: "If you wait for a long time, the capacitor is fully charged and the current through the branch of the circuit that contains C is zero". Apply this idea to this circuit and determnine if the current through the emf device after a long time is also zero. Please explain. %3D (c) If you wait for a long time, is the brightness of bulb A greater than, less than, or equal to the bright- ness of bulb B? Switch Сарacitor Bulb B Bulb A ww

The diagram below shows a RC circuit which consists of one capacitor and two identical light bulbs. The resistance of each light bulb is 20 N and the circuit is driven by an ideal emf device with & = 12 Volts. The switch is closed at t = 0. %3D (a) In class, I said the following: "At t = 0, an uncharged capacitor acts as an electrical short and may be conceptually replaced by an ideal wire ". Apply this idea and compare the brightness of each bulb at t =0 right after the switch is closed. (b) In class, I said the following: "If you wait for a long time, the capacitor is fully charged and the current through the branch of the circuit that contains C is zero". Apply this idea to this circuit and determnine if the current through the emf device after a long time is also zero. Please explain. %3D (c) If you wait for a long time, is the brightness of bulb A greater than, less than, or equal to the bright- ness of bulb B? Switch Сарacitor Bulb B Bulb A ww

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

Question 2: a. Consider a resistor of (0+ 255) N is connected to power source and voltage drop across the resistor are observed for the various input voltages and recorded in the table below. Calculate the current and verify the Ohm's Law by fill the following table. Resistance Voltage across Current by Ohm's Law (Ohm) the Resistor 2 V 4 V 6 V 8 V 10 V b. Graphically show the relationship between the voltage and current, using the values in part a. Also, find the resistance value from the graph.
In the figure two batteries of emf E = 11.0V and internal resistance r = 0.240 Q are connected in parallel across a resistance R. (a) For what value of R is the dissipation rate in the resistor a maximum? (b) What is that maximum? R ww (a) Number i Units (b) Number i Units
a) 17. Consider the process of discharging capacitor C through a resistor R. Refer to the Figure below. Using Kirchoff's loop rule, write down the (differential) equation relating the current / in the circuit and the charge Q on the capacitor. Note: The solution to the equation in Question (3a) for the initial condition Q(0) = Qo is given by b) c) Q(t) Que-t/RC = How much time does it take to discharge the capacitor R completely, represent your answer with a sketch of the plot of the capacitor's charge Q as a function of time t. How much time does it take to discharge the capacitor to half of the maximum value? Given C=10.0 uF, R= 30.0 k2, and Qo = 150 μC.
A 1000 pF capacitor is connected in series with a 2000 pF capacitor. Initially, the charges on the two capacitors are zero. At time t = 0, the combination is connected in series with a 1 M resistor and a 12 V battery. a) Sketch this circuit. b) Calculate the final charge on the 1 uF capacitor after a sufficiently long time, and estimate whether a characteristic time would be some milliseconds, some seconds, or some hours. c) Sketch a graph of the voltage on the 1 uF capacitor as a function of time, using your results from (b).
Attached is a figure that shows a source (a battery) with emf = Ɛ = 12V andinternal resistance of 2 Ω . We add another 4 Ω resistor to the battery, forming a complete circuit . What are the voltmeter and ammeter readings and I ?Note : The ideal ammeter has zero resistance, so the total resistance external to thesource is R = 4 Ω. Where the current through the circuit aa’b’b is then
You just need to solve the parts f, g, h
The figure below shows a capacitor, with capacitance C = 4.72 µF, and a resistor, with resistance R = 5.48 MO, connected in series battery, with E = 26.0 V. The circuit has a switch, which is initially open. R- (a) What is the circuit's time constant (in seconds)? (b) What is the maximum charge (in µC) on the capacitor after the switch is closed? (c) What is the current (in uA) through the resistor 10.0 s after the switch is closed? HA
Use the worked example above to help you solve this problem. An uncharged capacitor and a resistor are connected in series to a battery, as shown in the figure above. If E = 11.0 V, C = 5.50 μF, and R = 9.00 x 105 , find the following. (a) the time constant of the circuit (b) the maximum charge on the capacitor μC (c) the charge on the capacitor after 6.10 s μC S (d) the potential difference across the resistor after 6.10 s (e) the current in the resistor at that time A EXERCISE Use the values from PRACTICE IT to help you work this exercise. (a) Find the charge on the capacitor after 2.20 s have elapsed. Q = C (b) Find the magnitude of the potential difference across the capacitor after 2.20 s. AVC V = R HINTS: GETTING STARTED 1 I'M STUCK! (c) Find the magnitude of the potential difference across the resistor at that same time. AV V =
Chapter 27, Problem 039 GO In the figure two batteries of emf E = 11.0 V and internal resistance r = 0.306 are connected in parallel across a resistance R. (a) For what value of R is the dissipation rate in the resistor a maximum? (b) What is that maximum? HF 8 FWW 8 R
The figure below shows a capacitor, with capacitance C = 4.72 µF, and a resistor, with resistance R = 6.48 MΩ, connected in series to a battery, with ε = 26.0 V. The circuit has a switch, which is initially open. (a) What is the circuit's time constant (in seconds)? (b) What is the maximum charge (in µC) on the capacitor after the switch is closed? (c) What is the current (in µA) through the resistor 10.0 s after the switch is closed?
Given two batteries: one with voltage Vand internal resistance r1; another with also voltage Vand internal resistance r2. Which of the following is true if we connect them in parallel the positive terminal of one connected to the negative of the other? O The answer cannot be found on the other choices. The total voltage will be V, while the total internal resistance is (r1-1 + r21)1. No voltage will remain, while the total internal resistance is (rıi -1 + r2 O The total voltage will be 2V, while the total internal resistance is (r11 + r2)1.
Please answer #3