7.57 The wire that connects an antenna on your roof tothe TV set in your den is a 300-2 wire, as shown inFigure P7.57(a). This means that the impedance seenby the connections on your set is 300 s. Your TV,however, has a 75-2 Impedance connection, as shownin Figure P7.57(b). To achieve maximum powertransfer from the antenna to the television set, youplace an ideal transformer between the antenna and theTV as shown in Figure P7.57(c). What is the turnsratio, N = 1/n, needed to obtain maximum powertransfer?300 2(a)75 2AntennaconnectionsRear view oftelevision(b)300 2n:1V.antenna75 2V,signalD.ellaell

Here, consider the cable impedance as the source impedance and the impedance of the antenna…

Answered: 7.57 The wire that connects an antenna…

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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Similar questions

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.
Q2: Write a lecture for teaching the complex power fed to an (R-L) load fed from an AC power source of sinusoidal voltage and current waveforms, describing its three components, their waveforms, their power triangle, and units.
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.…
A sinusoidal voltage source V = 53 /67o Vrms feeds an impedance with a current I = 5 /33o Arms. The apparent power generated by the source is: Select one: a. 118.64 VA b. 80.02 VA c. 286.2 VA d. 265 VA e. 71.55 VA
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.
5
The value of critical clearing angle is ............... than clearing angle.
NOTE: Polar form for Voltage & Current. Rectangular form for Impedance Find the total impedance of the circuit, total power (apparent) delivered by the current source, Draw the phasor diagram of the voltage and current at the source, the current passing through the R2 and L1 branch, Draw the phasor diagram of the voltage and current at the R2 and L1 branch. Also, is the circuit inductive, capacitive, or neither (resistive)?
The following is given for a series R-L-C circuit: resistor (R) = 8 Ohms, an inductor (L) = 32 mH and a capacitor (C) = 800uF. The circuit is supplied by a voltage source of e = 120 sin (125t) Volts. What is the angular frequency of the ac source? What is the period of ac source? What is the circuit impedance? What is the power factor? What is the real power of the circuit? What is the rms value of the circuit current?
Solve for step by step process with complete solutions

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