EBK DELMAR'S STANDARD TEXTBOOK OF ELECT
6th Edition
ISBN: 8220100546686
Author: Herman
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21, Problem 5PP
Three capacitors having capacitance values of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Chapter 21 Solutions
EBK DELMAR'S STANDARD TEXTBOOK OF ELECT
Ch. 21 - Can current flow through a capacitor?Ch. 21 - What two factors determine the capacitive...Ch. 21 - How many degrees are the current and voltage out...Ch. 21 - Does the current in a pure capacitive circuit lead...Ch. 21 - 5. A 30- capacitor is connected into a 240-V,...Ch. 21 - 6. A capacitor is connected into a 1250-V, 1000-Hz...Ch. 21 - 7. A capacitor is to be connected into a 480-V,...Ch. 21 - On the average, by what factor is the life...Ch. 21 - A capacitor is connected into a 277-V, 400-Hz...Ch. 21 - A capacitor has a voltage rating of 350 VAC. Can...
Ch. 21 - A utility company plans to connect a total of 20 F...Ch. 21 - What is the minimum AC voltage rating of each...Ch. 21 - What is the total current flow through the circuit...Ch. 21 - What is the minimum KVAR rating of each capacitor...Ch. 21 - You are working as an electrician in an industrial...Ch. 21 - You are working in an industrial plant. You have...Ch. 21 - Capacitive Circuits Fill in all the missing...Ch. 21 - A 4.7-F capacitor is connected to a 60-Hz power...Ch. 21 - A capacitor is connected to a 208-volt, 60-Hz...Ch. 21 - A 0.47-F capacitor is connected to a 240-volt...Ch. 21 - Three capacitors having capacitance values of...Ch. 21 - A capacitor has a capacitive reactance of 300 ...Ch. 21 - A pure capacitive circuit is connected to a...
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
- You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?arrow_forwardThree capacitors having values of 2.2 F, 280 F, and 470 pF are connected in parallel. What is the total capacitance?arrow_forwardFill in all the missing values. Refer to the formulas that follow. Resistance Capacitance Time constant Total time 150 k 100 F 350 k 35 s 350 pF 10 s 0.05 F 1.2 M 0.47 F 12F 0.05 s 86 k 1.5 s 120 k 470 pF 250 nF 100 ms 8 F 150 s 100 k 150 ms 33 k 4 F =RCR=CC=R Totaltime=5arrow_forward
- You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?arrow_forwardWhat is the unit of measurement for the strength of a capacitor? microamp microtorque microfarad microwattarrow_forwardThis circuit is connected to a 1000-Hz line. The resistor has a voltage drop of 185 V. the inductor has a voltage drop of 740 V, and the capacitor has a voltage drop of 444 V. The circuit has an apparent power of 51.8 VA. ETITZVA51.8PFER185VIRRPEL740VILXLVARsLLEC444VICXCVARsCCarrow_forward
- You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.arrow_forwardA pure capacitive circuit is connected to a 480-volt, 60-Hz power source. An ammeter indicates a current flow of 24 amperes. The circuit current must be reduced to 16 amperes by connecting a second capacitor in series with the first. What is the value of the existing capacitor? What value capacitor should be connected in series with the original capacitor to limit the circuit current to 16 amperes?arrow_forwardThe circuit is connected to a 60-Hz line. The apparent power in the circuit is 29.985 VA, and the power factor is 62.5%. The resistor has a voltage drop of 14.993 V, the inductor has an inductive reactance of 60 , and the capacitor has a capacitive reactance of 45 . ETITZVA29.985PF62.5%ER14.993VIRRPELILXL60VARsLLECICXC45VARsCCarrow_forward
- You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.arrow_forwardA capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Electrical Measuring Instruments - Testing Equipment Electrical - Types of Electrical Meters; Author: Learning Engineering;https://www.youtube.com/watch?v=gkeJzRrwe5k;License: Standard YouTube License, CC-BY
01 - Instantaneous Power in AC Circuit Analysis (Electrical Engineering); Author: Math and Science;https://www.youtube.com/watch?v=If25y4Nhvw4;License: Standard YouTube License, CC-BY