Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 19, Problem 1RQ
What is the dielectric?
Expert Solution & Answer
To determine
What is a dielectric.
Explanation of Solution
A dielectric is an insulating material used to separate two metal platesin a capacitor. The value of dielectric is one the parameters that determines the capacitance of the capacitor.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Please provide explainations and detailed working. thank you
The excitation of a three-phase synchronous motor connected in parallel with a load of 500 kW
operating at 0-85 p.f. lagging is adjusted to improve the overall p.f. of the system to 0.95 lagging. If the
mechanical load on the motor is 120 kW, calculate the kVA input to the synchronous motor and its p.f.?
A domestic load of 2300 kW at 0.88 p.f lagging and a motors load of 3400 kW at 0.85 p.f lagging are
supplied by two alternators operating in parallel. If one alternator is delivering a load of 3300 kW at 0.9 p.f
lagging, what will be the output power and p.f of the other alternator?
Chapter 19 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 19 - 1. What is the dielectric?
Ch. 19 - List three factors that determine the capacitance...Ch. 19 - A capacitor uses air as a dielectric and has a...Ch. 19 - 4. In what form is the energy of a capacitor...Ch. 19 - Four capacitors having values of 20 F, 50 F, 40 F,...Ch. 19 - f the four capacitors in Question 5 were to be...Ch. 19 - A 22-F capacitor is connected in series with a...Ch. 19 - 8. A 450-pF capacitor has a total charge time of...Ch. 19 - Can a nonpolarized capacitor be connected to a DC...Ch. 19 - Explain how an AC electrolytic capacitor is...
Ch. 19 - What type of electrolytic capacitor will be...Ch. 19 - A 500-nF capacitor is connected to a 300-k...Ch. 19 - A film-type capacitor is marked 253 H. What are...Ch. 19 - A postage stamp mica capacitor has the following...Ch. 19 - A postage stamp capacitor has the following color...Ch. 19 - You are changing the starting relay on a central...Ch. 19 - You are an electrician working in an industrial...Ch. 19 - You find that a 25-F capacitor connected to 480...Ch. 19 - Fill in all the missing values. Refer to the...Ch. 19 - Two capacitors having values of 80 F and 60 F are...Ch. 19 - Three capacitors having values of 120 F, 20 F, and...Ch. 19 - Three capacitors having values of 2.2 F, 280 F,...Ch. 19 - A 470-F capacitor is connected in series with 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
- Design a bank of capacitors to provide 60V and 2kWh energy to capture and store regen breaking energy. Use commercial supercapacitor cells at 3V and 3600F. Capacitor voltage drops almost linearly during discharge and below half voltage maximum it doesn’t provide significant power. If we discharge a fully charged capacitor to its half voltage maximum, how much energy can be discharged compared to a full-discharged capacitor (show your calculation)?arrow_forward8-1) similar to Lathi & Ding, Prob. P.5.1-2 The figure below shows the Fourier spectra of signals of g,(t) and g₁(t). Determine the Nyquist rate and the corresponding sampling interval for signals of g,(t), g,(t), g₁(1) - g¸(1), g¸³(t), and g₁(1)g₁(1). Hint: Use the frequency convolution and the width property of convolution. G₁(f) G₂(f) -8000 0 8000 f -20000 10 20000 farrow_forwardCalculate the approximate values of the starting current, full-load current, and no- load current of a 150 horsepower, 575 V, 3- phase induction motor.arrow_forward
- Capacitor voltage drops almost linearly during discharge and below half voltage maximum it doesn’t provide significant power. If we discharge a fully charged capacitor to its half voltage maximum, how much energy can be discharged compared to a full-discharged capacitor (show your calculation)?arrow_forwardDesign a bank of capacitors to provide 60V and 2kWh energy to capture and store regen breaking energy. Use commercial supercapacitor cells at 3V and 3600F.arrow_forwardPlease explain in step by step detail how to answer and solve this problemarrow_forward
- Two loads connected in parallel are respectively 2 kW at a pf of 0.75 leading and 4 kW at a pf of 0.95 lagging. Calculate the pf of the combined two loads. Find the complex power supplied by the source. Hints: • • Since the two loads are parallel, the complex power, S, supplied by the source is S = S₁+ S₂ Calculate the complex powers, S₁ and S2, of each load (use power triangles) and add them to find the total S. Calculate 0 and obtain pf.arrow_forwardA 3-phase, 20-pole induction motor is con- nected to a 600 V, 60 Hz source. a. What is the synchronous speed? b. If the voltage is reduced to 300 V, will the synchronous speed change? c. How many groups are there, per phase?arrow_forwardStarting from Maxwell’s equations derive the Kirchohf’s circuit laws for voltage and current. Clearly mention what approximation is used for this derivation.arrow_forward
- In the control system shown in Figure Q4(a), G₁(s) = and G₂(s) == If the system has the specifications for the natural frequency and dampingratio of -5 rad/sec and {=0.7, respectively, determine K and H,(s) when H₂(s) = 1.arrow_forwardCan the expert help me draw a curve on my graph paper? TERMINAL VOLTS 9000 8000 7000 6000 5000 4100 4000 14 18 22 26 30 34 38 FIELD AMPERES, If OPEN CIRCUIT CHARACTERSTICS Fig 3 42 42 46 50 54arrow_forwardSolve this problem and show all of the workarrow_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
02 - Sinusoidal AC Voltage Sources in Circuits, Part 1; Author: Math and Science;https://www.youtube.com/watch?v=8zMiIHVMfaw;License: Standard Youtube License