Write true or false: 1. The power factor can be define as the ratio _[Tue power » apparent power 2. The superposition principle applies to power calculation. 3. The impedance of inductor increases with increasing frequency.
Write true or false: 1. The power factor can be define as the ratio _[Tue power » apparent power 2. The superposition principle applies to power calculation. 3. The impedance of inductor increases with increasing frequency.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.17MCQ: Consider the load convention that is used for the RLC elements shown in Figure 2.2 of the text. A....
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QI Q2 Q3: Write true or false: 1. The power factor can be define as the ratio _[Tue power » apparent power 2. The superposition principle applies to power calculation. 3. The impedance of inductor increases with increasing frequency. 4. The Norton'sresistance is exactly equal to the Thevenin resistance . 5. the average value for half cycle equale zero. 6. Power is the time rate of expending or absorbine ~ergy. Fillin the blanks: 1. The rms value of sinusoidal waveform (voltage of CUFFENt) i§iamsmmremmmmmmees e | 2. The instrument for measuring average POWET i§: =w--smssmeemmmmeamoamemaaans | 3. The imaginary part of impedance is called:----— 4. The Py, for pure inductive load AC Cirouit is: --mm-mmsmemsemmemmememene . 5. The frequency response of pure capacitance load AC circuit is derived from this relation :--—---—--. - 6. The sum of the currents entering a node is —--=w=-mx-- —- to the sum of the currents leaving the node. choose the correct answer: 1.The current through a branch in a linear network is 2Awhen e inpu source vouage is 10 V. If the voltage is reduced to 1V and the polarity is reversed, the current through the branch is: (a)-2A (b)-02A (©)02A (d2A (€)20 A 2.1f vl =30 coswt and v2 = 20 sin{er + 50°),which of these statements are true? (a) v1 leads 12 (b) v2leads v1 (c) v2 lags vl (d) vl lags v2 3. . The Norton current at terminals a and b of the circuit in Figure shown is: (a) 10A (b)25A (©2A (oA 5Q oV 00 4. Aseries RC circuit has Vg = 12V, V¢ = 5V and The magnitude of the supply voltage is: @7V (b)7V (© 13V D17V 5. A series RLC circuit has R = 30Q , XC =902, and XL = 50Q . The impedance of the circuit is: (2)30+/140 (b)30+/40 (c)30-j40 (d)-30-740 (e)-30+ 40
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