12.2 Find the power factor of the circuit below given that v.(t) = 120cos(377t) V. Redesign the circuit to make the power factor = 1. Vs(t) 10052 1H www
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- lši vl pir:10 Expert Q&A + 1. For the circuit in Figure: a. Determine I, VR, and Ve in phasor form. b. Calculate the total power factor, and indicate whether it is leading or lagging. c. Calculate the average power delivered to the circuit. d. Draw the impedance diagram. e. Find the voltages VR and Vcusing the voltage divider rule and compare them with the results of part(a) above. + Uc - + Ug - 30 2 L = 0.2 H L =0.2 H C = 4 µF e = V2(20) sin(377t + 40°) Expert Answer Home Search More IIA 220 Ω resistor is in series with an 80 mH inductor. The AC source is 48 at 1 kHz. The power factor is ________. Hint: Draw the circuit and get Vs and IsAn impedance coil, in series with a resistor takes a current of 3A when connected to a 120V AC source. Using a voltmeter, the voltage across the coil was found out equal to 90V and that across the resistor equal to 30V. Find the power factor of the impedance coil only. The frequency is 60 Hz
- d. 565.685 V If a Load absorbs 20 kVA at a leading power factor of 0.6. Then the complex power is: Select one: O a. 12000 - j16000 VA O b.-12000 + j16000 VA O c. 12000 + j16000 VA O d. None of these Given the circuit below and the associated set of voltages and currents, the reactive Power developed by im voltage source is FENG300 MINTERMA load is rated at 440V(rms), 7.5A(rms) and 3.3KW when connected to a 50HZ source. Find the load impedance.A certain impedance is given by 1012° N. Does the current lead or lag the voltage, and by how many degrees? Fill in the blanks. The current the voltage by
- 2. The pu impedance of a circuit element is 0.15. If the base kV and base MVA are halved. Then the new value of pu impedance of the circuit element is A. 1.2 C. 1.1 3. The pu impedan B. 1.0 B. ambient tempera- ture D. 0.8 E. noneA series RC circuit with R=4k ohms and C= 0.40 mF is connected to an AC voltage source e(t)= 100 sin200t. Determine the following: a). The overall power factor ( indicate big leading or lagging) b). The voltage drop across the resistor and the capacitor41. Two ac sources feed a common variable resistive load as shown in figure. Under the maximum power transfer condition, the power absorbed by the load resistance R, is lall 6 2 j8 2 6 2 11020 ( 0706 O9020° (a) 2200 W (b) 1250 W (c) 1000 W (d) 625 W
- 1) Two identical voltage waveforms of difference phase angles are shown in Figure B. Write down the expression of waveforms A and B clearly. HUS Voltage (V) 8 0 K/N B 7: ST otA voltage and current applied to a single phase load is v= 26 cos (300t+35) and i= 19 cos (250t- 20). Find the single and three phase active and reactive power of the circuit if the voltage and current are in sine waveformThe total reactive power of an AC circuit having power factor of 0.85 leading is 40kVAR. The true power drawn by the circuit is: PS: please write in detailed solution.