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)?
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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.Three 300- resistors areconnect in series with anAAA battery with a rating of 3 AmpHours. (a) How long can the battery supply the resistors with power? (b) If the resistors are connected in parallel, how long can the battery last?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)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.
- A simple circuit consists of a 115 V power supply, a 1.50 k2 resistor, and a switch. To monitor the performance of the circuit, a voltmeter and an ammeter are also installed in the circuit. 1. Sketch the circuit diagram for the circuit using 2. Calculate the current flowing through the resistor standard circuit symbols. Be sure to indicate the AND the power output of the circuit. correct connections for the voltmeter and ammeter. The voltmeter is placed to measure the voltage across the resistor. 3. The owner of the circuit pays $0.35 per kWh for electricity. What is the cost of operating the circuit for a total time of 4.00 days?a R₁ = 12 ε = 12V R₂ = 20 ww d R₂ = 30 b e g f Use Kirchhoff's Law to solve for the current, voltage, and power dissipated in each resistor. h 1. Draw this circuit and assign current direction. 2. Write an equation based on loop cefdc. 3. Write an equation based on loop adfgha. 4. Write an equation based on junction b. 5. Write the a matrix equation based on the equations you have written. 6. Use the matrix calculator to solve for the current. Take a screenshot https://www.desmos.com/matrix 7. Using the current values, solve for the voltages across each resistor. 8. The power dissipated across each resistor i is given by P; = I;V;. Calculate the power dissipated in each resistor. 9. Solve the current analytically.Consider the following circuit R1 V R2 where V = 30V, R2 = 30 and R = 30. 1. Are the resistors connected in series or parallel? 2. What is the equivalent resistance of the resistor pair. 3. Use V = IR and the equivalent resistance to find the total current though the battery. %3D 4. How much current flows through each of the two original resistors? ww
- Consider the following circuit ww R1 R2 where V = 10.0V, R2= 10.0k2 and R3 = 20.0kN. 1. Are the resistors connected in series or parallel? 2. What is the equivalent resistance of the resistor pair. 3. Use V = IR and the equivalent resistance to find the total current though the battery. 4. How much current flows through each of the two original resistors? (Hint: Note that each of the two resistors has the same voltage across them so you can use ohms law for each of them.) 5. Sum the two currents together, do you get the current through the battery? wwIf three resistors connected in series to a battery. Suppose R1 carries a current of 22.5A, R2 has a resistance of 150, and R3 dissipates 60W of power. What is the voltage across R3 and Resistance of R3 ? 1. Voltage across R3 %3D and 2. Resistance of R3 =Based on the picture, Determine the voltage across the 7.5 kiloohms resistor if 2 mA current flows on the upper network as shown in the picture. a. 6 V 2.5 V 15 V 10 V Determine the time constant τ (in seconds) of the RC circuit in the picture. a. 30 s b. 3.3 s c. 125 s d. 87.5 s