Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Question
Chapter 17, Problem 43P
(a)
To determine
To calculate: The frequency of oscillation of the given circuit
To identify: The type of oscillator
(b)
To determine
To calculate: The frequency of oscillation of the given circuit
To identify: The type of oscillator
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
"I need something clear written by hand
with steps."
Find Laplace transform and the corresponding ROC for
x(t) = e−3sin(2t) u(t)dt
Three similar coils, connected in star, take a total
power of 1.5 kW, at a power factor of 0.2, from a
three-phase, 400 V, 50 Hz supply. Calculate: (a) the
resistance and inductance of each coil; (b) the line
currents if one of the coils is short-circuited.
(a) Three 20 µF capacitors are star-connected across
a 400 V, 50 Hz, three-phase, three-wire supply.
Calculate the current in each line. (b) If one of the
capacitors is short-circuited, calculate the line cur
rents. (c) If one of the capacitors is open-circuited,
calculate: the line currents and the p.d. across each
of the other two capacitors.
ANS:
1.525 A; 2.64 A, 2.64 A, 4.57 A; 1.32 A, 1.32 A, 0;
210 V
Chapter 17 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 17 - In a bipolar transistor, if the base-emitter...Ch. 17 - When a transistor is saturated. an increase in...Ch. 17 - Prob. 3TFQCh. 17 - The power gain of a CC amplifier is the same as...Ch. 17 - A class B amplifier is more efficient than a class...Ch. 17 - A JFET is always operated with the gate-source...Ch. 17 - Prob. 7TFQCh. 17 - The transconductance of a FET is the ratio of ac...Ch. 17 - Prob. 9TFQCh. 17 - The input to a feedback oscillator is only the...
Ch. 17 - The n-type regions in an npn bipolar junction...Ch. 17 - The n-region in a pnp transistor is the base...Ch. 17 - Prob. 3STCh. 17 - Prob. 4STCh. 17 - Prob. 5STCh. 17 - Alpha () is the ratio of collector current to...Ch. 17 - If the beta of a certain transistor operating in...Ch. 17 - If the base current of a transistor operating in...Ch. 17 - Prob. 9STCh. 17 - When the gate-to-source voltage of an n-channel...Ch. 17 - When a negative gate-to-source voltage is applied...Ch. 17 - Prob. 12STCh. 17 - If the capacitor from emitter to ground in a CE...Ch. 17 - When the collector resistor in a CE amplifier is...Ch. 17 - The input resistance of a CE amplifier is affected...Ch. 17 - The output signal of a CE amplifier is always in...Ch. 17 - The output signal of a common-collector amplifier...Ch. 17 - The largest theoretical voltage gain obtainable...Ch. 17 - In a class A amplifier, the output signal is...Ch. 17 - A class A amplifier conducts for 90 of input cycle...Ch. 17 - Prob. 21STCh. 17 - Feedback oscillators operate on the principle of...Ch. 17 - What is the value of IC for IE=5.34mA and IB=475A?Ch. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - In a certain transistor circuit, the base current...Ch. 17 - Find IB,IE, and in Figure 17-70 given that DC=0.98...Ch. 17 - The transistor in Figure 17-70 is replaced with...Ch. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Determine IB,IC, and VC in Figure 17-72.Ch. 17 - For the circuit in Figure 17-73, find VB,VE,IE,IC,...Ch. 17 - In Figure 17-73, what is VCE? What are the Q-point...Ch. 17 - A transistor amplifier has a voltage gain of 50....Ch. 17 - To achieve an output of 10 V with an input of300...Ch. 17 - A 50 mV signal is applied to the base of a...Ch. 17 - Determine the voltage gain for Figure 17-74.Ch. 17 - Determine each of the dc voltages, VB,VC, and VE,...Ch. 17 - Determine the following dc values for the...Ch. 17 - Determine the following ac values for the...Ch. 17 - The amplifier in Figure 17-76 has a variable gain...Ch. 17 - If a load resistance of 600 is placed on the...Ch. 17 - Determine the voltage gain for the...Ch. 17 - What is the total input resistance in Figure...Ch. 17 - A load resistance is capacitively coupled in the...Ch. 17 - Prob. 24PCh. 17 - Determine the maximum peak output voltage and peak...Ch. 17 - The efficiency of a certain class B push-pull...Ch. 17 - Prob. 27PCh. 17 - The transistor in Figure 17-80 has a DC of 150....Ch. 17 - The VGS of ap-channel JFET is increased from 1 V...Ch. 17 - Why must the gate-to-source voltage of an...Ch. 17 - Draw the schematic symbols for n-channel and...Ch. 17 - Explain why both types of MOSFETs have an...Ch. 17 - In what mode is an n-channel D-MOSFET operating...Ch. 17 - A certain E-MOSFET has a VGS(th)=3V. What is the...Ch. 17 - For each circuit in Figure 17-81, determine VDS...Ch. 17 - Prob. 36PCh. 17 - Each E-MOSFET in Figure 17-83 has a VGS(th) of +5...Ch. 17 - Prob. 38PCh. 17 - Find the gain of each amplifier in Figure 17-85.Ch. 17 - Determine the gain of each amplifier in Figure...Ch. 17 - If the voltage gain of the amplifier portion of a...Ch. 17 - Generally describe the change required to the...Ch. 17 - Prob. 43PCh. 17 - Prob. 44PCh. 17 - Prob. 47PCh. 17 - Prob. 48PCh. 17 - Prob. 49PCh. 17 - Prob. 50PCh. 17 - Prob. 51PCh. 17 - Prob. 52PCh. 17 - Open file P17-53. Determine if the circuit is...
Knowledge Booster
Similar questions
- Explain the advantages of three-phase supply for distribution purposes. (b) Assuming the relationship between the line and phase values of currents and voltages, show that the active power input to a three-phase balanced load is √3VI cos φ, where V and I are line quantities. (c) Three similar inductors, each of resistance 10 Ω and inductance 0.019 H, are delta-connected to a three-phase, 400 V, 50 Hz sinusoidal supply. Calcu late: the value of the line current; the power factor and the active power input to the circuit. ANS: 59.5 A, 0.858 lag, 35.5 kWarrow_forwardnot use ai pleasearrow_forwardA three-phase, 400 V, star-connected motor has an output of 50 kW, with an efficiency of 90 per cent and a power factor of 0.85. Calculate the line current. Sketch a phasor diagram showing the voltages and currents. If the motor windings were connected in mesh, what would be the correct voltage of a three phase supply suitable for the motor? ANS: 90.8 A, 240 Varrow_forward
- Don't use ai to answer I will report you answerarrow_forwardShow with the aid of a phasor diagram that for both star- and delta-connected balanced loads, the total active power is given by √3VI cos φ, where V and I are the line values of voltage and current respectively and φ is the angle between phase values of voltage and current. A balanced three-phase load consists of three coils, each of resistance 4 Ω and inductance 0.02 H. Determine the total active power when the coils are (a) star-connected, (b) delta-connected to a 400 V, three phase, 50 Hz supply. ANS:11.56 kW, 34.7 kWarrow_forwardThe load connected to a three-phase supply comprises three similar coils connected in star. The line currents are 25 A and the apparent and active power inputs are 20 kVA and 11 kW respectively. Find the line and phase voltages, reactive power input and the resistance and reactance of each coil. If the coils are now con nected in delta to the same three-phase supply, calculate the line currents and the active power taken. ANS : 462 V, 267 V, 16.7 kvar, 5.87 Ω, 8.92 Ω; 75 A, 33 kWarrow_forward
- A three-phase delta-connected load, each phase of which has an inductive reactance of 40 Ω and a resistance of 25 Ω, is fed from the secondary of a three-phase star-connected transformer which has a phase voltage of 230 V. Draw the circuit diagram of the system and calculate: (a) the current in each phase of the load; (b) the p.d. across each phase of the load; (c) the current in the transformer secondary windings; the total active power taken from the supply and its power factor.arrow_forwardDerive the numerical relationship between the line and phase currents for a balanced three-phase delta connected load. Three coils are connected in delta to a three-phase, three-wire, 400 V, 50 Hz supply and take a line current of 5 A 0.8 power factor lagging. Calculate the resistance and inductance of the coils. If the coils are star-connected to the same supply, calculate the line current and the total power. Calculate the line cur rents if one coil becomes open-circuited when the coils are connected in star. Ans: 110.7 Ω, 0.264 H; 1.67 A, 926 W; 1.445 A, 1.445 A, 0arrow_forwardDerive, for both star- and delta-connected systems, an expression for the total power input for a balanced three-phase load in terms of line voltage, line current and power factor. The star-connected secondary of a transformer supplies a delta-connected motor taking a power of 90 kW at a lagging power factor of 0.9. If the volt age between lines is 600 V, calculate the current in the transformer winding and in the motor winding. Draw circuit and phasor diagrams, properly labelled, showing all voltages and currents in the transformer secondary and the motor. ANS: . 96.2 A, 55.6 Aarrow_forward
- Deduce the relationship between the phase and the line voltages of a three-phase star-connected generator. If the phase voltage of a three-phase star-connected generator is 200 V, what will be the line voltages: (a) when the phases are correctly connected; (b) when the connections to one of the phases are reversed? ans: 346 V; 346 V, 200 V, 200 Varrow_forwardQ2: Given a discrete sequence x(n) = [1,-1,2,4, 1, 3,-1,1] and its spectrum X(k): i. Show that: X(k) =G(k)+WH(k) k=0,1,2,3,4,5,6,7 where G(k) = DFT[g(n)] and H(k) = DFT[h(n)], g(n) and h(n) are even and odd components of x(n) respectively. ii. Compute G(k) and H(k) using the method of computation of DFTS of two real sequences. (15 marks)arrow_forwardQ2: Given a discrete sequence x(n) = [1,-1,2,4, 1, 3,-1,1] and its spectrum X(k): i. Show that: X(k) = G(k)+WH(k) k = 0,1,2,3,4,5,6,7 where G(k) = DFT[g(n)] and H(k) = DFT[h(n)], g(n) and h(n) are even and odd components of x(n) respectively. ii. Compute G(k) and H(k) using the method of computation of DFTS of two real sequences.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSON
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Programmable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill Education
Electric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSON
Engineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,