4 For the circuit of Figure P7.23, determine thepower factor for the load and state whether it is leadingor lagging for the following conditions:a. vs(t) = 780 cos(@t + 1.2) ViL (t) = 90 cos(@t + 7/2) Ab. vs(t) = 39 cos(@t +1/6) VİL (t) = 12 cos(@t – 0.185) Ac. vs(t) = 104 cos(@t) ViL (t) = 48.7 sin(wt+ 2.74) Ad. Zi = (12+ 8) 2%3D iz(1)Vs(t)ZŁ

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Answered: 4 For the circuit of Figure P7.23,…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Given the waveform of a voltage source shown in figure P7.8 find: a. The steady DC voltage that would cause the same heating effect across a resistance. b. The average current supplied to a 10-ohm resistor connected across the voltage source. c. The average power supplied to a 1-ohm resistor connected across the voltage source.
3.n Figure 3P.2 shows two capacitor banks, C, and C2, in a substation C is enercized, but C, is discharged. The three-phase, 60 Hz ratings of the banks are: C,, 5 MVA; C,, 3 MVA, on a 13.8 kV base. The source has a short circuit rating of 20 kA rms at 13.8 kV. The inductance of the loop between C, and C,, represented by L, is 30 µH. 13.8 kV V3 L L2 o to C2 Source Capacitor banks ouG OL 19 Fig. 3P.2. Calculate the peak transient voltage that will appear on C, and the peak transient current that will flow in L,, if the switch S is closed at the peak of the voltage cycle. Point out any assumptions you make.
Problem #7) Specify whether each of the statements are TRUE or FALSE. D Reactive Power is a measure of the average power consumed by reactive (capacitive and inductive) loads. When connected to an AC voltage source, the instantaneous power (rate of energy transfer) supplied to a resistor varies at a frequency that is 2x the frequency of the applied source voltage. The magnitude of the impedance of a capacitor supplied by an AC source will increase as the source frequency increases. An AC source that has an RMS magnitude of 100V will supply the same average power to a resistor compared to a 100V DC source. The voltage across a capacitor is proportional to the rate of change of the current flowing through the capacitor. The magnitude of the impedance of a resistor supplied by an AC source does not vary as the source frequency increases. A complex impedance Z=R+jX, that has non-zero resistive and reactive components, will consume both real and reactive power when supplied by an AC source.…
Please please answer all subparts. I will really upvote
An ac system supplies an apparent power of 10KVA to a circuit; the reactive power being 6KVAR. The power factor of the circuit is ____. a. 0.6 b. 1 c. 0.8 d. 0.75
Electrical load that draws current whose impedance varies throughout the cycle of the input ac voltage waveform is known as nonlinear load. True False
For the following numeric values (Shown in the picture attached along with the figure) determine the average power, P, the reactive power, Q, and the complex power, S, of the circuit shown in figure p7.13. Note: phasor quantities are rms.
Q3. For the circuit shown below, sketch the current waveforms iş and io and determine the Average and RMS for both currents. i, 1:1 ɑi = 15° Vs = 220 V az = 250° ot i. 302 VR ot 2n
The actual impedance of a system is 300 Ω. The base kVA is 300 kVA, and the base voltage is 11 kV. What is the actual impedance with 400 kVA and 38 kV as base values? a. 300 b. 33.52 c. 0.744 d. 0.083
8.49 In the circuit shown in Fig. P8.49, a generator is connected to a load via a transmission line. Given that : (4 + j2) №2, and Zload = (40+ j30) 2: = Rs = 102, Zline S
Which one of the following statements is true: The purpose of the power-factor correction is to add inductive elements to keep real power at a minimum level. The purpose of the power-factor correction is to add resistive elements (typically resistances) to improve the total reactive power. The purpose of the power-factor correction is to add reactive components (typically capacitive) to establish a system power factor closer to unity. The purpose of the power-factor correction is to add resistive elements (typically resistances) to establish a system power factor closer to zero.
= = Impedances Z₂ and z3 in parallel are in series with an impedance z₁ across a 100V,50Hz AC supply. Z₁ (6.25 +j1.25)ohms, Z₂ = (5 + j0)ohms and Z3 (5 - jxc)ohms. Determine the value of capacitance Xc said that the total current of the circuit will be in phase with the total voltage. What is then the circuit current and power?

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