The following information is given in connection with a parallel connected impedances: Za = (13 – j7.5) ohms, Zb = (R + j10) ohms. Determine the value of R if the power factor is: (a) 1 (b) 0.75 lagging

The following information is given in connection with a parallel connected impedances: Za = (13 – j7.5) ohms, Zb = (R + j10) ohms. Determine the value of R if the power factor is: (a) 1 (b) 0.75 lagging

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 2.13MCQ

See similar textbooks

Related questions

Q: number of poles iï

A: Open Loop System-A control system in which the input of the system does not depends on the output of...

Q: X 2 4 Y 5 2

Q: Three loads each having a resistance of 10 ohms are connected in WYE. The total three phase power is...

A: Since, the load current is equal to the phase current. IL=Iph=VphR The line voltage is root three ti...

Q: A circular coil has a mean diameter of 100 cm having an electron density of 3.34 x 10 24 e/m3 with a...

Q: How did he define the limits of the drawing from -3 to plus 3 we Knowthat Ac cos(27T e t) <EIy Ac SC...

Q: a) Find the inverse Laplace transform for the following functions: 12 F(s) = 200 X(s) = s(s +10) g²+...

A: Solve the first question, unless the student has asked for a specific question to be solved, subject...

Q: 1. VR, Vo, and In 4.7KQ 12V Y si Y Si Vo

Q: A power transformer rated 8MVA, 34.5 kV/230 V is connected delta-delta.What is the current of the LV...

A: The solution is given below.

Q: Q2) A lossless transmission line is terminated with a 1002 load. If VSWR on the line is 1.5, fined t...

Q: 3) your assumptions On the circuit below, find the voltage across each of the resistors. Clearly sta...

A: Given:

Q: Example: Suppose that an analog signal is given as x(t) = 5cos (2n x 10 t) and is sampled at the 8kH...

Q: Question No. 4: For the below circuit, assume that: V:(t) = 20 cos(wt+30°) V2(t) = 10 sin(wt+60°) V3...

A: The solution is given below

Q: Find Io, compute the by He elements power absorbed or supplied 8 V 6 A + 1 4 A + 24 V 2 10 V Ix = 2 ...

A: Answer-

Q: Compute the Values: (include solutions)

Q: Q1. Calculate vo and io for the circuit of figure1 using nodal analysis technique. 4 k2 Vi 50 mH V2 ...

A: Given

Q: I need the drawing step by step and each information separately p3 of 5:) The spectoum of xCF) is 2....

Q: Solve the equation using Cramer's rule (10 + j20)I, -+ j10I, = 60/30° (13.3.1 For mesh 2, j101, + (j...

Q: 6. Convert the following numbers: Binary Signed Binary Negative -5.510 10 673 8 100112 ACE16 - 45110

A: "According to the Company's policy we will solve the first three parts of the question". We need to ...

Q: Question No. 2: Let z1 = 2 + j2 and z2 = -2 + j6. %3D (a) Compute the polar form of z1 and z2. (b) C...

A: The solution is given below

Q: If voltage v 10 cos(100t + 30°)V is applied to a 50 uF capacitor, calculate the current

Q: Determine the percent voltage regulation of a transformer, given: V1 = 473 V V2 = 3467 V S rating = ...

Q: Write all pertinent computations to justify your final answer. Final answers must be enclosed with a...

Q: Determine each statement if it is TRUE or FALSE. A1. The sum of the homogeneous and particular solu...

A: A1. Answer: True Explanation: The response of any LTI system is the sum of the homogeneous solution ...

Q: Design a triggering circuit which shows the use of UJT, and determine the range of possible values o...

A: Solution- We must synchronised the firing circuit, with main circuit power supply in order to match ...

Q: Find and plot y(t) = x(t) * h(t) h()

A: In this question, We need to determine the output y(t) if x(t) and h(t) is given. We are solving t...

Q: A Platinum RTD transducer has a resistance of 100 ohms at 0 degrees celsius, 149 ohms at 120 degrees...

Q: Simplify the following quantities using a unit with an appropriate prefix: a.3.2x108 Hz b.4.56x10-...

Q: 14. What is the color of a resistor having a coded value of 0.74 M2?

Q: Assuming that a 5-bit ADC channel accepts analog input ranging from 0 tos volts, determine the follo...

A: As per our company guidelines we are supposed to answer first 3 sub parts of a question. But I have ...

Q: An electric skillet draws 5000 mA at 220 V. Assuming that everything is constant and the voltage dr...

Q: + I 12V 1A

Q: Question 1 A 132/33 kV 250 MVA single-phase step-down transformer has the following parameters: R1 =...

Q: A certain current lags the voltage by 36 electrical degrees. The voltage waveform is increasing posi...

A: We need to find time for current become zero and voltage at the given time.

Q: 5. An ideal 300W transformer has an input current of 9 A and an output voltage of 230 V. Determine V...

A: Brief description: Transformer is an electrical device which is used to step up and step down the vo...

Q: Convert 100 Hp into its equivalent Watts.

A: In this case, 100 Hp of power is to be converted into its equivalent power in watts.

Q: (B): Apply Mesh analysis method to find the current i in figure (2.2). 20 Q 8 V i 2Ω 6Ω iz iz 10 2 1...

A: Given circuit,

Q: Att = 0*, find the power that is supplied by the capacitor. I = 3A, R1 = 20 ohm, R2 = 31 ohm. I=3A 2...

Q: 17.a. When the speed of a machine is the same as that of the driving motor, the easiest method of co...

Q: Truth Table KMAP Boolean Expression 00 01 11 | 10 1 1 1 1

Q: 5+j30 2+j60 5-j42 a 2+j80 3-j60 6+j30 j100 30

Q: Determine the power of the 10V-source using Thévenin’s theorem. Is the source active or passive? Exp...

A: Given the circuit network as shown below: We need to determine the power of the 10 V source using T...

Q: Using 10v dc source to produce 8 mA to feed circuit, so calculate the value of all resistors.

Q: Question No. 1: Answer the following Questions: 1. Compute the polar coordinates of a) z1 = -1 - j b...

A: Cartesian and polar forms play an important role in Electrical engineering. especially in AC circuit...

Q: bode elat Rf exuplanation atip. ky stip Praw bede plat ef feliawing felcowing with de failed Hliw) =

A: The transfer function of the given system is: H(s)=11+1.57s The magnitude and phase is given as: H(j...

Q: I2 13 I4 10 Α 10 Ω 20 Ω 30 Ω 2 A 60 Ω

A: For the calculation of power in current source, firstly we need to find the voltage across the curre...

Q: 2. A wire is 4 in x 0.5 in x 20 ft and a resistivity of 15.75 (2 - CM)/ ft at 12 °C. Calculate its r...

Q: Using the circuit in Figure 24-27 on page 730 in the textbook, calculate the magnitude of the voltag...

Q: An office in Oman has the following electrical appliances usage: (i) Twenty numbers of 15 Watt LE...

A: It is given that: Twenty numbers of 15 Watt LED lamps are used for half of the day. Fifteen numbers ...

Q: Make a Wiring Diagram of Two – Station Start Stop Motor Control.

A: Start Stop Motor Control- In the simplest form, it is a circuit designed to supply power to, and rem...

Q: If a half-wave rectifier is used with 117-V rms ac (house mains), the average dc output voltage is a...

Question

The following information is given in connection with a parallel connected impedances: Z_a = (13 – j7.5) ohms, Z_b = (R + j10) ohms. Determine the value of R if the power factor is:

(a) 1

(b) 0.75 lagging.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The sending-end voltage in the circuit seen is adjusted so that the load voltage is always 13,800 V(rms). The variable capacitor is adjusted until the average power dissipated in the line resistance is minimum. 1. a) If the frequency of the sinusoidal source is 60 Hz, what is thevalue of the capacitance in microfarads?2. b) If the capacitor is removed from the circuit, what percentageincrease in the magnitude of Vs is necessary to maintain 13,800V(rms) at the load?3. c) If the capacitor is removed from the circuit, what is thepercentage increase in line loss?
A load impedance, Zo = 10 + j 3 ohm, is connected to a source with line resistance equal to 3 ohm, as shown in the figure. Determine the average powers delivered to the load and absorbed by the line. The average powers delivered to the load and absorbed by the line are ________ and ____________ , respectively.
It is desired to purchase a synchronous condenser to correct the 2,400-KVA 0.67-lagging power factor load in an industrial plant to 0.95 lagging. Neglect losses, calculate: (a) the kilovolt-ampere input rating of the required synchronous condenser; (b) the total kilovoltamperes of the plant. Using the phasor diagram.
From the circuit given below, How can I find the value of load Z for the maximum power transfer and the maximum average power transferred?
In the case of reactive power compensation in a low voltage distribution network and increasing the power factor to cosQ2 = 0.92 as a result of compensation while cosQ1 = 0.75, which of the following expresses the change in apparent power transmitted from the line a) increase by 22.66% b) decrease by 22.66% c) increase by 18.47% d) increase by 15.00% e) decrease by 18.47%
1. Solve for the equivalent impedance and admittance seen at the source. Solve for is(t). 2. A load Z draws 12 kVA at a power factor of 0.856 lagging from a 120-Vrms sinusoidal source. Calculate: (a) the average and reactive powers delivered to the load, and (b) the peak current.
A load of 10,000 kVA, 80% pf lagging is connected to a 13,200 volts line. How much capacitive reactive power is needed to correct the power factor to 0.97 lagging?
Perform phasor analysis to the circuit shown to evaluate the total complex power (S) absorbed by the (40 + j30) Ω load. Afterwards, identify the following for the (40 + j30) Ω load: i. average power (P), ii. reactive power (Q), iii. apparent power (S), iv. power factor (pf) and predict whether the power factor is leading or lagging
The impedance ZL in the circuit is adjusted for maximum average power transfer to ZL. The internal impedance of the sinusoidal voltage source is 4+j7 Ω. 1. a) What is the maximum average power delivered to ZL?2. b) What percentage of the average power delivered to the lineartransformer is delivered to ZL?
A 50 Hz, 250 V single phase power line has the following loads placed across it in paralell; 4 kW at a pf of 0. 8 lagging; 6 kVA at a pf of 0.6 lagging; 5 kVA which includes 1.2 kVAR leading. Determine the overall pf of the system and the capacitance of the capacitor which, if connected across the mains restore the power factor to unity.
A series circuit of RLC with following parameters, R=15 ohm, L=20 m H & C=100 micro Farad. VT=169.7 sin (337t-30) Volt. Find the following: Zt, , It, Voltage across each element, Power factor, apparent power, real or average power and reactive power and the total phasor diagram and power phasor diagram
S.2) The serial impedance of the 300 km power transmission line is 23 + j75 ohm / phase and the shunt acceptance is j500 microS / phase. A power of 50 MW with a power factor of 0.88 under 220 kV interphase voltage from the end of the power transmission line being shot. Using these data of the energy transmission line, a) Characteristic impedance of the energy transmission line, b) Natural apparent power of the energy transmission line according to the 220 kV interphase operating voltage, c) The values of the line parameters A, B, C and D of the transmission line using hyperbolic functions, d) Calculate the maximum power that the power transmission line can transmit.