The switch in the circuit below has been in position a for a long time. At t = 0, it moves instantaneously to position b, where it remains for 50 ms before moving instantaneously to position c. Find v. (t) for all time periods t≥ 0. 20 mA 4.7 ΚΩ www 500 Ω t=0 a +81 b t = 50 ms 160 nF 6.25 ΚΩ
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- The figure below shows a simple RC circuit with a 3.30-μF capacitor, a 4.40-M resistor, a 9.00-V emf, and a switch. What are the following exactly 9.00 s after the switch is closed? (a) the charge on the capacitor 13.7204 UC (b) the current in the resistor 0.0110522 x Your response is off by a multiple of ten. HA (c) the rate at which the capacitor is storing energy μW (d) the rate at which the battery is delivering energy μWIn the following figure, the switch is left in position a for a long time interval and is then quickly thrown to position b. Find and rank the magnitudes of the voltages (V, VL, VRI, Vr2) across the four circuit elements a short time thereafter from the largest to the smallest. Vs 12.0 V 2.00 H 1 200 0 VRI 12.0 0 Vr2In the circuit shown in figure the switch is closed at time (t=0). The rate of change of current dt across inductor will be tm0 20 8F 20v (3H
- The peak time for the first overshoot in the figure is : C(t) 1. 28 1 step input 3 secIn the circuit below, Find the voltage across the inductor at time t = 0.000909 s. The values are V1 = 146V, R = 4.4 ohms, L =0.02 henriesQuestion 4 Figure 7 shows a recorded current waveform i(@t) from a converter. The current is related to (@t) during each cycle and alternates between 0 and +IL. The current waveform varies with time at constant frequency. i(ot +IL ot -T -Tt/2 T/2 3t/2 Figure 7 a) Determine the expression that describes the waveform i(@t) shown in Figure 7 as a function of ot. 1 b) Calculate the average value: a, . c) Identify all symmetries of the waveform i(ot) Figure 7.
- A resistor and a capacitance are connected in series to an emf source. The time constant of the circuit is 0.87 s. What will be the 35 - time constant of the new circuit when another capacitor identical to the first is connected in series with the circuit? O a) 0.973s O B) 1,742 s O C) 2.034 s O D) 2.136 s O TO) 0.435 sThe figure below shows a simple RC circuit with a 3.50-µF capacitor, a 3.60-MQ resistor, a 9.00-V emf, and a switch. What are the following exactly 6.50 s after the switch is closed? S C R (a) the charge on the capacitor (b) the current in the resistor µA (c) the rate at which the capacitor is storing energy (d) the rate at which the battery is delivering energyE = 12 V C= 150 µF R = 50 R = 150 E Initially the capacitor is uncharged, and the switch has been for opened for a long time. Then at time t = 0 the switch is closed. After being closed for a long time, the switch is opened. Find the total energy U dissipated in the resistor R2 after the switch is opened. O a. U= 6.08 mJ O b. U= 4.77 mJ O C. U= 10.80 mJ o d. U= 2.34 mJ O e. U= 0.58 mJ
- 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?The circuit in Figure has been connected for a long time. If the battery is disconnected, how does it take the capacitor to discharge to 1/20 of its initial voltage? Take R₁ = 2.00 Q, R₂=4.00 Q, R3-7.00 Q, R4 = 2.00 Q and C= 5.00 uF and ε = 14.0 V. (Your result must be in us. Include 2 digit after the decimal point and maximum of 2% of error is accepted in your answer.) E R₂ R₂ BACan you check if my answers are correct (a) Determine the time constant of the circuit. T = 5.6ms (b) Write the mathematical equation for the voltage vC following the closingof the switch. Vc = 25(1 - e-t/5.6ms)V (c) Write the mathematical expression for the current iC following the closing of the switch. Ic = 0.446e-t/5.6ms mA (d) Sketch the waveforms of vC and iC