1. What is the RC time constant when the switch is first closed?2. What is the current in the circuit?3. What will be the voltage across the capacitor at 0.7 time constant and at3.0 time constants?4. How long will it take for the capacitor to ―fully discharge‖ itself (equal to 5time constants)? Activity 4: Circuit is life!Study the RC discharging circuit. Show your complete solutions for thequestions that follow.A capacitor is fully charged to 10 volts.t = 0ofwwwVc = 10vC=22uF1. What is the RC time constant when the switch is first closed?2. What is the current in the circuit?3. What will be the voltage across the capacitor at 0.7 time constant and at3.0 time constants?4. How long will it take for the capacitor to "fully discharge" itself (equal to 5time constants)?R = 100k

Given Resistor, R=100kΩ Capacitor voltage, Vc=10v Capacitor, C=22μF

1. What is the RC time constant when the switch is first closed? 2. What is the current in the circuit? 3. What will be the voltage across the capacitor at 0.7 time constant and at 3.0 time constants? 4. How long will it take for the capacitor to ―fully discharge‖ itself (equal to 5 time constants)?

1. What is the RC time constant when the switch is first closed? 2. What is the current in the circuit? 3. What will be the voltage across the capacitor at 0.7 time constant and at 3.0 time constants? 4. How long will it take for the capacitor to ―fully discharge‖ itself (equal to 5 time constants)?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter21: Circuits And Dc Instruments

Section: Chapter Questions

Problem 53PE: A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit...

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A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit diagram of the connection, (b) What is the resistance of the combination? If the voltage across the combination is kept the same as it was across the 75.0-kresistor alone, what is the percent increase in current? (d) If the current through the combination is kept the same as it was through the 75.0-kresistor alone, what is the percentage decrease in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss.
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Study the RC discharging circuit. Show your complete solutions for the questions that follow. A capacitor is fully charged to 10 volts. 1. What is the RC time constant when the switch is first closed? 2. What is the current in the circuit? 3. What will be the voltage across the capacitor at 0.7 time constant and at 3.0 time constants? 4. How long will it take for the capacitor to ―fully discharge‖ itself (equal to 5 time constants)?
A. The following subparts are about an RC dynamic circuit 1. Please draw a circuit diagram for a 15 V battery that is in series with a 5-ohm resistor, has an open switch, and a .75 uF capacotir. Then find the circuit's time constant in us. 2. Find the initial curent when the swith is closed at t=0s and use the initial current plue the time constant to create a mathematical expression for the current as a function of time, I(t). Please include a drawing of I(t) from t=0 to t=5 RC 3. Use the expression you created in 2 to find the current at t=.010ms 4. Find the charge Q on the capacitor plates when they are fully charged. Write another mathematical expression for the capactitor charge as a function of time using the charge Q plus the time constant. Include a drawing of Q(t) from t=0 to t=5RC. 5. Use the expression you created in 4 to find voltage across the capacitor plates at t=.010ms. The subparts 2 and 3 please!
6. The following subparts are about an RC dynamic circuit a. Please draw a circuit diagram for a 15 V battery that is in series with a 5-ohm resistor, has an open switch, and a .75 uF capacotir. Then find the circuit's time constant in us. b. Find the initial curent when the swith is closed at t=0s and use the initial current plue the time constant to create a mathematical expression for the current as a function of time, I(t). Please include a drawing of I(t) from t=0 to t=5 RC c. Use the expression you created in (b) to find the current at t=.010ms d. Find the charge Q on the capacitor plates when they are fully charged. Write another mathematical expression for the capactitor charge as a function of time using the charge Q plus the time constant. Include a drawing of Q(t) from t=0 to t=5RC. e. Use the expression you created in (d) to find voltage across the capacitor plates at t=.010ms. JUST THE LAST TWO (D AND E)
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