Average power delivered to impedance (4-j3) 2 by a current 5cos (100nt + 100) A Select one: O a. 62.5 W O b. 44.2 W O c. 50 W O d. 125 W
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- The rms value of v(t)=Vmaxcos(t+) is given by a. Vmax b. Vmax/2 c. 2Vmax d. 2VmaxFor the circuit shown, determine the current through the 2+j5 ohms impedance. jsn 2.2 2 -M m BLIOA 5L20 AN 4 jios 100 20 A 3.40 2Determine the output waveform for the network of figure below and calculate the output dc level. Si D1 + 220 V 60 Hz ODeg 2.7kn V. TS POWER_10_Td_1 Si D2
- Use the information below to answer questions 24 und 25. The voltage across and the current through a load are (10+ j5Y and (2-jiArespecively. 24. What is the reactive power in VArconsumed? D. 0 A. 15 C. 20 D. 25 25. What is the pawer factor of the load? A. 0.8 leading B. 0.8 Jagging. -D. 0.6 ligging C 0.6 leading1) 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 otd. 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 MINTERM
- Problem 1 • A sinusoidal source with frequency of 60 Hz and rms-voltage of 100 V is connected to an RL load of 10 ohms and 100 uH. Find Power Factor From Calculation Find Power Factor From Plot L=10mH find power factor from calculation onlyAn impedance of 10 + j80 ohms is connected in parallel with a 50 ohms resistor across a 230V ac source. What is the power factor of the circuit? a. 0.95 b. 0.84 c. 0.87 d. 0.92Impedance of AC circuit and Admittance of AC circuitSHOW THE CIRCUIT USING ANY SOFTWARE OR YOU CAN DRAW IT MANUAALYY thNAKSS
- O b.0= (30 + j40)lg - j10lL O c. None O d.0= (j10)lg+ (30 + j40)L If a Load absorbs 10 kVA at a leading power factor of 0.6. Then the complex power is: Select one: O a. None of these Ob.-6000-j8000 VA O c.6000 +8000 VA O d. 6000 -18000 VA If a Load absorbs an average power of 8 kW at a leading power factor of 0.8, Then the complexWhen a resistor is connected across the terminals of an ac generator (117 V) that has a fixed frequency, there is a current of 0.332 A in the resistor. When an inductor is connected across the terminals of the same generator, there is a current of 0.365 A in the inductor. When both the resistor and the inductor are connected in series between the terminals of this generator, what is (a) the impedance of the series combination and (b) the phase angle between the current and the voltage of the generator? Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. (a) Number (b) Number Buda i Vrms R Irms.R Circuit 1 Units Units Vrms. Irms, L Circuit 2 > L Vrms R www Circuit 341. 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