1.5v E B. AB 4700 uF 100 Ω R Figure 6 T ×200 Ω Table 2 Question 1. At t=0 the open circuit is closed, forming the connection: A. Caclulate the equivalent resistance of the circuit at t=0, then use this to find the predicted time constant tau (tau-Req * C) B. Calculate the voltage drop and the current through the charging capacitor at t=0, immediately when the switch is closed C. Calculate the equivalent resistance of the circuit for dicharging the capacitor. Then use this value to calculate hte predicted time constant for discharging the capacitor.
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- An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in parallel. The circuit is connected to a 240-V, 400-Hz power supply. Find the following values. XL=XC=IR=AIL=AIC=AP=WVARsL=VARsC=IT=AVA=PF=%=I Review | Constants In the circuit shown in the following figure(Figure 1) the capacitor has capacitance 17 uF and is initially uncharged. The resistor Ro has resistance 11N. An emf of 91.0 V is added in series with the capacitor and the resistor. The emf is placed between the capacitor and the switch, with the positive terminal of the emf adjacent to the capacitor. The small circuit is not connected in any way to the large one. The wire of the small circuit has a resistance of 1.0 N/m and contains 30 loops. The large Part A The switch is closed at t = 0. When the current in the large circuit is 3.10 A , what is the magnitude of the induced current in the small circuit? Express your answer with the appropriate units. circuit is a rectangle 2.0 m by 4.0 m, while the small one has dimensions a = 13.0 cm and b = 23.0 cm. The distance c is 4.0 cm. (The figure is not drawn to scale.) Both circuits are held stationary. Assume that only the wire nearest the small circuit produces an…Basic Electrical Engineering: Inductance and Capacitance You are an electrician working in an industrial plant. You discover the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-V AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 µF and a voltage rating of 240 V AC. The only 10-µF capacitor in the storeroom is marked with a voltage rating 350 VDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
- EXAMPLE + 5V – 0.1uF At the instant the switch makes a contact with terminal a, the voltage across the capacitor is 5V. The 10V b 6V 100k2 switch remains at a for 9 ms then moves to terminal b. How many milliseconds after making contact with terminal a does the opamp 8V -6V saturate?Consider the circuit in figure given below: A B The capacitor C is initially charged. At time 0, the switch is connected from A to B and the voltage across the capacitor is measured. The following data are recorded by a data acquisition system: t(s) 0.0 0.1 0.2 0.3 0.4 0.5 V(V) 4.98 1.84 0.68 0.25 0.09 0.03 (a) Determine the linear correlation coefficient betweent and V. (b) Determine the linear correlation coefficient between t and In(V).A 0.7-H inductor is connected in series with a 9-ohm resistor. If the connection is energized from an 11-V DC source, determine which among the following is a differential equation describing the current / in the circuit at any time t. O A. di dt O B. di 8 dt O C. di dt OD. di dt 90 + -i = 7 + + + 110 7 7 110 7 90 1 = i = i = 110 7 90 7 90 7 110
- A 0.7-F capacitor is connected in series with a 9-ohm resistor. If the connection is energized from an 11-V DC source, determine which among the following is a differential equation describing the circuit? Let q be the amount of the charge in the circuit at any time t. O A. dq dt O B. dq dt O C. dq dt O D. dq dt + - 9 + 11 + 63 10 9 11 10 63 = = || 10 63 9 11 63 10 11 9There is no energy stored in the circuit at the timethe current source is energized.1. a) Find Ia and Ib.2. b) Find ia and ib.3. c) Find Va, Vb, and Ic.4. d) Find va, vb, and vc.5. e) Assume a capacitor will break down whenever its terminal voltage is 1000 V. How long after the current source turns on willone of the capacitors break down?A 140-mH inductor and a 5.50- resistor are connected with a switch to a 6.00-V battery as shown in the figure below. E ww 000 R L (a) After the switch is first thrown to a (connecting the battery), what time interval elapses before the current reaches 220 mA? (???) s (b) What is the current in the inductor 10.0 s after the switch is closed? (???) A (c) Now the switch is quickly thrown from a to b. What time interval elapses before the current in the inductor falls to 160 mA? (???) ms
- A capacitor C with 1 mF is charged by a constant voltage source (U). Source and capacitor are connected by a resistor R with 10 ko. To discharge the capacitor the source is replaced by a short. U R 1 R charging discharging The voltage source is replaced by a constant current source with an output of 1 mA. Please draw the voltage at the capacitor qualitatively over the time.An inductor is "charged" to some value, then connected in series with a 1002 resistor and allowed to "discharge". A measurement of the potential difference across the resistor is shown in the figure below. Compute the time constant of the circuit, the inductance of the inductor, and the initial current through the inductor. 12 10 8 6 Potential across resistor (V) 2 0 0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 time (s)When the switch is in position 1, the circuit will charge the capacitor. Find the Thevenin Equivalent Circuit for the charge phase and determine the time constant (Rh*C) for the charge phase.