When a 4.7 uF capacitor is connected to a 1 kHz source, what is its capacitive reactance? A. 4.7 ohms B. 29.5 ohms C. 34 ohms D. 213 ohms
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- What frequency must be applied to a 33-mH inductor to produce an inductive reactance of 99.526 ?Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?
- The circuit is connected to a 60-Hz line. The apparent power in the circuit is 29.985 VA, and the power factor is 62.5%. The resistor has a voltage drop of 14.993 V, the inductor has an inductive reactance of 60 , and the capacitor has a capacitive reactance of 45 . ETITZVA29.985PF62.5%ER14.993VIRRPELILXL60VARsLLECICXC45VARsCCAssume 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. ETITZ20VAPFER78VIRRPEL104VILXLVARsLLMethod: Transient Analysis Solve for Current and Voltage at 20 ms and 100 ms for: Capacitor 1 (C1) (20 microFarad) Capacitor 2 (C2) (10 microFarad) Inductor (L1) (10 mH) Resistor 1 (R1) (500 ohms) Resistor 2 (R2) (200 ohms) Voltage: 25 V, 1000 Hz
- An RG58 coaxial cable has a capacitance of 30 pF per foot and a characteristic impedance of 50 ohms. What is the inductance of the cable per foot.Find the closest standard value inductance that has the reactance of 2ohm at frequency of 14.47kHzUsing the phase shift of 72º from the Experiment, determine the inductance value, L, of the inductor shown. Vr(t) =3.7272 cos(4000 t - 72°) [V]
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