t = 0 6 k2 25 mH 12 v (* 2 µF velt) 6 k2 3 k2
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- Assume that the voltage drop across the resistor, ER, is 78 V, that the voltage drop across the inductor, EL, is 104 V, and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. ETITZ20VAPFER78VIRRPEL104VILXLVARsLLAssume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the capacitor, EC, is 104 V; and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. Find the missing values. ET ER78V EC104V IT IR IC Z20 R XC VA P VARSC PF CFor t < 0, the capacitor in the given figure is completely discharged. Assume that the switch is thrown at t = 0. Let VS = 15 V, R = 200 Ω, L = 20 mH, and C = 0.1 μF.
- An electrical circuit has a very small resistance so it can be despised. The capacitor on the left was charged up to the voltage of Vo=10 volts and then, at time t=0, the switch S was closed. The capacity of the capacitors are C=60 µF, and the coil inductance is L=0.04 HI) Find the voltage on the left capacitor, at the instant V1=0.001 s.II) Find the voltage in the right capacitor, at the instant t=002 s.The voltage across a capacitor C is equal to v(t) = 8 cos(1000t) V. Determine the current i(t) through the capacitor at time t. C=100mu,F and t=8Pt A. Derive the expression for the capacitor voltage for the time interval 0≤t≤10 μs. Pt B. Derive the expression for the capacitor voltage for the time interval 10 μs≤t≤ 20μs. Pt C. Derive the expression for the capacitor voltage for the time interval 20 μs≤t≤40 μs. Pt D. Derive the expression for the capacitor voltage for the time interval 40 μs≤ t<∞. Pt E. Sketch v(t)v(t) over the interval 0μs≤t≤50
- A capacitor 0.038 µF capacitor has a negative temperature coefficient α of - 177 ppm / deg C. The nominal temperature for the capacitor is 25 degrees C. If the capacitor has to operate at 30 degrees C, what would the decrease in capacitance be? Enter your answer in pFThe current in the capacitor is 0 for t<0 and 3 cos 50,000t A for t≥0. Find (a) v(t); (b) the maximum power delivered to the capacitor at any one instant of time; and (c) the maximum energy stored in the capacitor at any one instant of time.3. Write the equation for capacitor voltage, v(t)=V0e−t/τ, for t≥0
- A 200 Ω resistor, 0.900 H inductor, and 6.00 µF capacitor are connected in series across a voltage source that has voltage amplitude 30.0 V and an angular frequency of 250 rad/s. (a) What are v, vR, vL, and vC at t = 20.0 ms? Compare vR + vL + vC to v at this instant. (b) What are VR, VL, and VC? Compare V to VR + VL + VC. Explain why these two quantities are not equal.A series L–R–C circuit has a supply input of 5 volts. Given that inductance, L = 5 mH, resistance, R = 75ohm and capacitance, C = 0.2µF, determine (c) the frequency at which the p.d. across the capacitance is a maximum and (d) the value of the maximum voltage across the capacitor. answer: c) 4741 hz, d)10.85voltsAll capacitors were initially discharged. at t = 0, S1 is placed at position 1 and S2 is closed. During this phase, it has been determined that Eth and Rth seen by the equivalent capacitor are, respectively, 16 V and 11.0 kΩ. The equivalent capacitor is 1.50 µF. Calculate the time constant for this phase. Enter your answer in ms rounded to 2 decimal places. At t = 15 ms, S1 is placed at position 2 and S2 is kept closed. At t = 25 ms, S1 is kept at position 2 and S2 is opened. Data: R1 = 5 kΩ, R2 = 4 kΩ, R4 = 3 kΩ, R5 = 18 kΩ, R6 = 12.5 kΩ;