4 – DC Machine 1. Describe operation of DC machine (motor and generator) using illustrations. Specifically explain the purpose of: a. brushes d. armature winding b. split ring commutators e. effect of back emf (in operation) c. field winding 2. Draw the different configurations of DC machines a. shunt c. separately excited b. series 3. Develop‚ using Kirchhoff’s laws‚ equation for Ea (armature voltage) in both motoring and generating mode. 4. Describe three (3) methods of speed control in DC machines
Premium Electric motor
YOU FIND IT NECESSARY / CONVENIENT IN WRITING UP YOUR CASE. Cooper industries 1. If you were Mr. Cizik of Cooper Industries‚ would you try to gain control of Nicholson File Co in May 1972? 2. What is the maximum price that Cooper can afford to pay for Nicholson and still keep the acquisition attractive from the standpoint of Cooper? 3. What are the concerns and what are the bargaining position of each group of Nicholson stockholders? What must Copper offer each group in order to acquire its
Premium Finance Investment Stock market
sociology is the ’study of society’ but this doesn’t differentiate sociology from other forms of social study. Hence‚ many begin to describe thinking sociologically by what it is not - it is not thinking politically‚ thinking anthropologically‚ thinking historically or thinking psychologically‚ for example (Berger 1966: 11-36; Reiss 1968: 2-3). Others try to determine the nature of sociological thinking by detailing practical phenomena which can be thought about such as social systems and their subsystems
Premium Sociology
Limitations Even though the report finished on time‚ it does not mean that I did not face any problem in doing this research. Every student may have different report since we work in different places. The most difficult problem that I found during doing this research was difficult to get information from managers while doing questionnaire. It may because the employee there is really busy with customer on the calls and other activities such as controlling their subordinates or junior. Most of them
Free China Chinese language Standard Mandarin
despises Jews. The Jews struggle to hold on to their humanity. Dehumanization is the process by which the Nazis gradually reduced the Jews to little more than “things” which could easily be gotten rid of in terrible ways with no remorse. Three specific examples of events that occurred which dehumanized Eliezer‚ his father‚ and his fellow Jews acquaintances. Jews were dehumanized in many different ways. One way Jews were dehumanized was by having number tattoos. After they got it that’s how they were known
Premium The Holocaust Nazi Germany Germany
Study: Prudential Financial Inc.: Stockholders’ Equity and Balance Sheet Leverage 1. Compare the stockholders’ equity section of the balance sheet with the statement of stockholders’ equity. Describe in general terms how they relate. The Balance Sheet equity is a snapshot of the balances at book value of the funds contributed by the owners to finance operations‚ whereas the statement of stockholders’ equity shows a summary of the transactions which took place during a financial period‚ ie shows
Premium Stock Stock market
Paper 4 What should schools provide? Schools should provide better after school programs. After school programs exist to improve grades and performance level. A program for after school children promotes a safe environment that will keep kids out of trouble. Families who enroll a child in after school programs benefit in many ways. Improving the way after school programs operate can improve the child mentally‚ emotionally‚ and physically. The importance of a math and reading after school program
Premium Improve Standardized test Education
given by technician. 2. A circuit was set up as in figure 1. 3. H-bridge circuit was created. There were 4 switches and a motor in a circuit with two jumpers. 4. The theory was applied. The jumpers were connected to the alternate voltage supply. 5. The direction of DC motor was tested and determined. 6. All switches were in closed position at initial condition. 7. Only switch 1 and 4 was closed at the first condition as in figure 2(a). The direction of DC motor and the RPM of DC motor was recorded
Premium Electric motor
Unit 37 assignment 37.1 Animation Flipbooks A flip book is a book with a series of pictures that vary gradually from one page to the next‚ so that when the pages are turned rapidly‚ the pictures appear to animate by making motion or some other change. This is called persistence of vision. Flip books are mainly created as books for children because they enjoy to be involved in the book. There may also be books made for adults. Flip books are normally made from one book but sometimes they can be
Premium Animation
Requirements for MBA504: Financial Management September 19‚ 2014 Module 2 Chapter 5 Warm-Up E5-1 Assume a firm makes a $2‚500 deposit into its money market account. If this account is currently paying 0.7% (yes‚ that’s right‚ less than 1%!)‚ what will the account balance be after 1 year? FV=PV X (1 + Rª) 2‚500 x (1 + .007)¹= $2‚517.50 E5-2 If Bob and Judy combine their savings of $1‚260 and $975‚ respectively‚ and deposit this amount into an account that pays 2% annual interest‚ compounded
Premium Investment Finance Rate of return