Homework Answers
First answer
The time constant (in seconds) of an RC circuit, is equal to the product of the the circuit capacitance (in farads) and circuit resistance (in ohms)
Consider a capacitor is fully charged to 10 volts.
Now, Calculate the RC time constant, τ of the following RC discharging circuit when the switch is first closed.
Write the expression for the time constant.
T = R*C seconds
Add Answer to:
Explain the time constant in simple RC circuit? What happens to charging time when connecting more...
when an initially uncharged capacitor in an RC circuit, what happens to the potential difference across...
when an initially uncharged capacitor in an RC circuit, what
happens to the potential difference across the capacitor
Reading Question 27.23 When an initially uncharged capacitor is charged in an RC circuit, what happens to the potential difference across the resistor? O It is initially 0 and then increases linearly with time. O It is initially at its maximum value and then decreases linearly with time. O It is initially at its maximum value and then decreases exponentially with time....
Looking at a RC circuit, using resistors and capacitors, calculate the RC time constant for discharging...
Looking at a RC circuit, using resistors and capacitors, calculate the RC time constant for discharging and charging capacitors. The voltage from the power supply is 10V. V = 0.63*V0, V = 0.37*V0
RC circuit question? You need to construct an RC circuit with a time constant of 0.25...
RC circuit question? You need to construct an RC circuit with a time constant of 0.25 s, and you are given aselection of 1, 10, 100, and 1000 µF capacitors, and 1, 10, 100, and 1000 Ω resistors. Draw acircuit which accomplishes this task, labeling the resistance or capacitance of each component. Keep the circuit as simple as possible.
Suppose that a particular RC series circuit has a time constant of 5.0 seconds. What does...
Suppose that a particular RC series circuit has a time constant of 5.0 seconds. What does that mean in terms of the charging and discharging? How would this circuit compare to the ones you tried? Explain qualitatively and quantitatively. What could be a practical application of an RC circuit ?
Question 4: RC Circuit: a) Charging capacitor: A simple RC circuit is given in Figure 4a....
Question 4: RC Circuit: a) Charging capacitor: A simple RC circuit is given in Figure 4a. The capacitor is empty initially and switch was open for a long time. 4E, (V) EMF is used to charge the capacitor as switch is closed at t=0s. By using Kirchhoff's voltage law and Ohm's law that you learned so far, analyze this circuit and find the unknowns given below. 1)At t=0s. draw the equivalent circuit and find v. (Os), i. (Os), i (Os),...
Time constant of a charging RC circuit is 150 microsecond. What does it mean? Arial Τ...
Time constant of a charging RC circuit is 150 microsecond. What does it mean? Arial Τ Τ Τ Τ Paragraph %D9 Mashup • 3 (12pt) T' T. - E-T. ན ཝཱ་ hthip If you need to have 9 Vas Vest from a 24 V source. V. If you have 10 as R1, what resistance, in ohm, do you need as R2? R1 + Vin R2 Vout ->
Thought Experiment: Explain what is physically happening to the charge in the RC circuit during charging and discharging cycles (i.e. Why does the capacitor charge/discharge quickly at first but slow...
Thought Experiment: Explain what is physically happening to the charge in the RC circuit during charging and discharging cycles (i.e. Why does the capacitor charge/discharge quickly at first but slows down with more time? Where is the charge going?). In the DC Electrical Circuits lab, we used the analogy of water flowing through a pipe to visualize Ohm's law can you extend that analogy to the RC circuit? *
Thought Experiment: Explain what is physically happening to the charge in...
1. What does the time constant of an RC circuit that is being charged tell you?
Background Summary Questions: 1. What does the time constant of an RC circuit that is being charged tell you? 2. What does the time constant of an RC circuit that is being discharged tell you? 3. How is the voltage across the capacitor related to the charge on a capacitor? (Linear, Inverse, Quadratic, etc.) 4. Based on your answer to question 3, how would you write an expression for the voltage across the capacitor as a function of time? a. Charging: V(t) b. Discharging: V(t)= Background: The...
Example 28.12 Charging a Capacitor in an RC Circuit Problem An uncharged capacitor and a resistor...
Example 28.12 Charging a Capacitor in an RC Circuit Problem An uncharged capacitor and a resistor are battery, as shown in Figure 28.23. If emf = 12.0 V, C = 5.00 AuF, and R = 8.00 x 105 ?, find the time constant of the circuit, the maximum charge on the capacitor, and the charge and current as functions of time. in series to a Figure 28.23 The switch in this series RC circuit, open for times t> , is...
Find the number of time constants for the capacitor in an RC charging circuit to reach...
Find the number of time constants for the capacitor in an RC charging circuit to reach 88 % of its maximum charge. Express your answer using two significant figures.
when an initially uncharged capacitor in an RC circuit, what
happens to the potential difference across the capacitor
Reading Question 27.23 When an initially uncharged capacitor is charged in an RC circuit, what happens to the potential difference across the resistor? O It is initially 0 and then increases linearly with time. O It is initially at its maximum value and then decreases linearly with time. O It is initially at its maximum value and then decreases exponentially with time....
Suppose that a particular RC series circuit has a time constant of 5.0 seconds. What does that mean in terms of the charging and discharging? How would this circuit compare to the ones you tried? Explain qualitatively and quantitatively. What could be a practical application of an RC circuit ?
Question 4: RC Circuit: a) Charging capacitor: A simple RC circuit is given in Figure 4a. The capacitor is empty initially and switch was open for a long time. 4E, (V) EMF is used to charge the capacitor as switch is closed at t=0s. By using Kirchhoff's voltage law and Ohm's law that you learned so far, analyze this circuit and find the unknowns given below. 1)At t=0s. draw the equivalent circuit and find v. (Os), i. (Os), i (Os),...
Time constant of a charging RC circuit is 150 microsecond. What does it mean? Arial Τ Τ Τ Τ Paragraph %D9 Mashup • 3 (12pt) T' T. - E-T. ན ཝཱ་ hthip If you need to have 9 Vas Vest from a 24 V source. V. If you have 10 as R1, what resistance, in ohm, do you need as R2? R1 + Vin R2 Vout ->
Thought Experiment: Explain what is physically happening to the charge in the RC circuit during charging and discharging cycles (i.e. Why does the capacitor charge/discharge quickly at first but slows down with more time? Where is the charge going?). In the DC Electrical Circuits lab, we used the analogy of water flowing through a pipe to visualize Ohm's law can you extend that analogy to the RC circuit? *
Thought Experiment: Explain what is physically happening to the charge in...
Background Summary Questions: 1. What does the time constant of an RC circuit that is being charged tell you? 2. What does the time constant of an RC circuit that is being discharged tell you? 3. How is the voltage across the capacitor related to the charge on a capacitor? (Linear, Inverse, Quadratic, etc.) 4. Based on your answer to question 3, how would you write an expression for the voltage across the capacitor as a function of time? a. Charging: V(t) b. Discharging: V(t)= Background: The...
Example 28.12 Charging a Capacitor in an RC Circuit Problem An uncharged capacitor and a resistor are battery, as shown in Figure 28.23. If emf = 12.0 V, C = 5.00 AuF, and R = 8.00 x 105 ?, find the time constant of the circuit, the maximum charge on the capacitor, and the charge and current as functions of time. in series to a Figure 28.23 The switch in this series RC circuit, open for times t> , is...
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