Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 54P
To determine
The value of the input current drawn by the motor.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A dc series motor drives a load a 30rev/s and takes a current of 10A when the supply voltage is 400V. If the total resistance of the
motor is 20 and the iron, friction and windage losses amount to 300W, determine the efficiency of the motor
ANSWER:
%
Blank 1
Blank 1 Add your answer
What would be the efficiency of an alternator having 2hp power output if the input voltage is 230 volts and the input current is 7 amperes?
A 12 V DC electrical motor draws a current of 18 amps. How much work does this motor produce over a 10-minute period of operation?
O 97.42 kJ
O129 6 kJ
216.0 kJ
318 2 kJ
A Moving to another question will save this response.
alda.
Chapter 4 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 4 - What is the voltage across a 220 resistor if the...Ch. 4 - What is the current through a 2.20 resistor if the...Ch. 4 - How much resistance is required to limit the...Ch. 4 - At starting, what is the current drain on a 12 V...Ch. 4 - If the current through a 100k resistor is 3.6A...Ch. 4 - If a voltmeter has an internal resistance of 50k...Ch. 4 - If a refrigerator draws 2.2 A at 120 V, what is...Ch. 4 - If a clock has an internal resistance of 8k find...Ch. 4 - A washing machine is rated at 4.2 A at 120 V. What...Ch. 4 - A CD player draws 80 mA when 4.5 V is applied....
Ch. 4 - The input current to a transistor is 20A If the...Ch. 4 - Prob. 12PCh. 4 - If an electric heater draws 9.5 A when connected...Ch. 4 - In a TV camera, a current of 5.6 mA passes through...Ch. 4 - Plot the curve of I (vertical axis) versus...Ch. 4 - Plot the I-V curve for a 5 and a 20 resistor on...Ch. 4 - Prob. 17PCh. 4 - Sketch the internal resistance characteristics of...Ch. 4 - Plot the I-V characteristics of a 1k,10k, and a 1M...Ch. 4 - If 540 J of energy are absorbed by a resistor in...Ch. 4 - The power to a device is 40 joules per second...Ch. 4 - How many joules of energy does a 8 W nightlight...Ch. 4 - How long must a steady current of 1.4 A exist in a...Ch. 4 - What is the power delivered by a 12 V battery if...Ch. 4 - The current through a 4k resistor is 7.2 mA. What...Ch. 4 - The power consumed by a 2.2k resistor is 240 mW....Ch. 4 - What is the maximum permissible current in a 82,...Ch. 4 - The voltage drop across a transistor network is 22...Ch. 4 - If the power applied to a system is 10 kW, what is...Ch. 4 - A 1 W resistor has a resistance of 4.7M . What is...Ch. 4 - A 2.2k resistor in a stereo system dissipates 42...Ch. 4 - What are the hot resistance level and current...Ch. 4 - What are the internal resistance and voltage...Ch. 4 - A calculator with an internal 3 V battery draws...Ch. 4 - A 20k resistor has a rating of 100 W. What are the...Ch. 4 - What is the total horsepower rating of a series of...Ch. 4 - A 10 resistor is connected across a 12 V battery....Ch. 4 - How much energy in kilowatthours is required to...Ch. 4 - How long can a 1500 W heater be on before using...Ch. 4 - A 60 W bulb is on for 10 h. a. What is the energy...Ch. 4 - In 10 h an electrical system converts 1200 kWh of...Ch. 4 - At 12/kWh how long can you play a 250 W color...Ch. 4 - The electric bill for a family for a month is...Ch. 4 - How long can you use an Xbox 360 for $1 if it uses...Ch. 4 - The average plasma screen TV draws 339 W of power,...Ch. 4 - The average PC draws 78 W. What is the cost of...Ch. 4 - If a house is supplied with 120 V, 100 A service,...Ch. 4 - What is the total cost of using the following at...Ch. 4 - What is the total cost of using the following at...Ch. 4 - Prob. 50PCh. 4 - The motor of a power saw is rated 72% efficient....Ch. 4 - What is the efficiency of a dryer motor that...Ch. 4 - A stereo system draws 1.8 A at 120 V. The audio...Ch. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - An electric motor used in an elevator system has...Ch. 4 - The motor used on a conveyor belt is 85%...Ch. 4 - Prob. 58PCh. 4 - The overall efficiency of two systems in cascade...Ch. 4 - What is the total efficiency of three systems in...Ch. 4 - If the total input and output power of two systems...Ch. 4 - Using PSpice 0r Multisim, repeat the analysis of...Ch. 4 - Using PSpice or Multisim, repeat the analysis of...
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
- A dc series motor drives a load a 30rev and takes a current of 10A when the supply voltage is 400V. If the total resistance of the motor is 20 and the iron, friction and windage losses amount to 300W, determine the efficiency of the motor ANSWER: % Blank 1arrow_forwardThe meter constant of a 245 volt, 70 ampere, single phase energy meter is 1650 revolutions per KWh When tested at quarter load, rated voltage and 0.8 power factor, the meter is found to make 100 revolutions in 65 seconds. Determine the percentage error at quarter loadarrow_forward8-What is the efficiency of a motor with a resistance of 6 ohms and a zit emf of 12 V when operating with a current of 2 A? A) 50 B) 75 C) 25 D) 100 E) 10arrow_forward
- Explain the principle of operation of a dual power supply with 220V ACarrow_forward6.A purely resistive electric furnace is connected in parallel with a motor with lagging power factor less than 1.0. The combination of both charges will give an equivalent charge: a) With the same power factor as that of the motor. b) With a power factor closer to 1 than that of the motor. c) With a power factor lower than that of the motor. d) It cannot be indicated with the information provided. e) there is no solutionarrow_forwardA 50-A, 230-V energy meter on full load test makes 61 revolutions in 37 sec. if the meter constant is 520 rev/kWh, what is the percentage error?arrow_forward
- A 110-V, 50 Hz supply is connected across 15 ohm resistor. Determine the instantaneous current after 5 millisecond.arrow_forwardA-cmil 1. Convert to 2-m foot 2. An electric motor drives a mechanical load, taking 15.8 amp from a 230-volt source. Caiculate (a) the power input to the motor, (b) the horsepower output of the motor if it operates at an efficiency of 76.4 percent.arrow_forwardAn electric motor operating at 100 V d.c. draws current of 10 A. The resistance of the winding of the motor if its efficieney is 25% ?arrow_forward
- The question is how to produce hv about 150 kv. A) What if we have a dc battery with a voltage of 9 volts? B) If we have ac voltage with a range of 220 volts?arrow_forwardI have a 230/460 volt motor, rated 1140 rpm at 60 hz. can you please tell me the number of poles and the rated KW? thanksarrow_forwardHow much work could be performed by a 1492 W (2 hp) motor in 5 hours?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning