The voltage across a 2µF capacitor is given by the waveform shown below. Determine and sketch the corresponding current waveform. У(), V 3 4 6. t, ms -12
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- Assume that the current flow through the resistor, IR, is 15 A; the current flow through the inductor, IL is 36 A; and the circuit has an apparent power of 10,803 VA. The frequency of the AC voltage is 60 Hz. ET ER EL IT IR15A IL36A Z R XL VA10,803 P VARSL PF LAssume 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 CThe capacitor of external defibrillator must be loaded at 1500V, in order to generate a two-phase wave of 150 J.Considering a transthoracic impedance is 80ohms and a capacitance of 30 000 uF. 3- What is the energy of the capacitor?4- What is the internal impedance of the defibrillator in the previous cases?
- An amateur radio operator wishes to build a receiver thatcan tune a range from 14.0 MHz to 15.0 MHz. A variablecapacitor has a minimum capacitance of 86 pF. (a) Whatis the required value of the inductance? (b) What is themaximum capacitance used on the variable capacitor?An AC Voltage Generator provides 100 V at angular frequency of 500 rad/s to a series RLC, R = 3 ohms, C = 50 uF, L = 10 to 80 mH. Peak Voltage across the capacitor should not exceed 1200 V. A. Determine the voltage across the Inductor, VL(t). Hint: VL(t) leads VR(t) by 90 degrees. What is the average voltage across the inductor, VL? B. Determine the voltage across the Capacitor, VC(t). Hint: VC(t) lags VR(t) by 90 degrees. What is the average voltage across the capacitor, VC? C. Show that V ≠ VR + VL + VCA 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.
- Please help answer the problem below. Problem: Sketch the waveform of the voltage Vc across the capacitor if Vc = 0V at t = 0 s, below for the current of a 20uF capacitor.Find the reactance of a capacitor of capacitance 5 mF and frequency of ac is 10 GHz.12. 7.12 In the circuit , let Ig represent the dc current source, σrepresent the fraction of initial energy stored in the inductor that isdissipated in to seconds, and L represent the inductance. 1. a) Show thatR=Lln[1/(1−σ)]2to
- 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)10.85voltsThe voltage across a 100-μF capacitor takes thefollowing values. Calculate the expression for thecurrent through the capacitor in each case.a. vC(t) = 40 cos(20t − π/2) Vb. vC(t) = 20 sin 100t Vc. vC(t) = −60 sin(80t + π/6) Vd. vC(t) = 30 cos(100t + π/4) VA LC circuit in a radio tuned to 1080 kHz has an inductor with an inductance value of 60 μH and a resistance of 0.25 Ω. a. what is the capacitance of the LC circuit? b. sketch the impedance phasor diagram for the radio. Be sure to label important features of the diagram.