- •Part 1 Fundamentals of Electrical Enqineering
- •1. The Concept of Electrical Current Word List
- •Exercises
- •I. Find the equivalents :
- •II. Read and translate the text: The Concept of Electrical Current
- •III. Answer the following questions:
- •IV. Look through the text and translate the following sentences:
- •2. The Electric Circuit and its Elements
- •The electric circuit and its elements
- •Exercises
- •3 Answer the following questions:
- •4 Complete the following sentences using the words given below:
- •3. Types of Current Word List
- •Types of Current
- •1. D.C. Is a current that
- •2. A.C. Flows provided
- •3. In an alternating current circuit
- •4. How Electrical Energy is Produced Word list
- •Exercises
- •I. Find equivalents:
- •How Electrical Energy is Produced
- •Exercises
- •II. Answer the following questions:
- •IV. Translate the following sentences:
- •5. Conductors and insulators Word List
- •Exercises
- •I. Form adjectives, using the suffix “-ful”: use, power, success, peace, help, fruit, truth.
- •II. Find the equivalents:
- •III. Match parts of the sentences:
- •Conductors and insulators
- •Exercises
- •IV. Answer the following questions:
- •V. Translate the following sentences:
- •6. Semiconductors Word list
- •Exercises
- •I. Read the following words:
- •Semiconductors
- •II. Answer the following questions:
- •III. Translate the following sentences:
- •IV. State if the following sentences are true to the fact or false. Correct the false sentences.
- •7. Capacitors Word List
- •Capacitors
- •Exercises
- •1. Answer the questions:
- •8. Energy Supply
- •Energy supply
- •9. Sources of Power Word List
- •Sources of power
- •10. Meters Word List
- •Notes to the text:
- •11. The Sun’s Energy Word List
- •The sun’s energy
- •Notes to the text:
- •Part 2 Outstanding Scientists and Inventions
- •1. Alexander Bell - the Inventor of the tTlephone
- •2. Charles Augustin de Coulomb (1736-1806).
- •3. Ernest Rutherford (1871-1937)
- •4. Lasers
- •Vocabulary notes
- •5. Batteries
- •6. Marie Curie and Radium.
- •Професiйного спрямування”
Exercises
II. Answer the following questions:
What methods of producing electricity for practical purposes do you know?
What is chemical method of producing electricity characterized by?
What method is employed for generators of various sizes?
What voltage is produced by the heating of the junction between two different metals?
What forms does electronic method of producing electricity have?
By what action are electrons liberated at the surface of centarn substances at photo-electric emission?
III. Match a line in A with a line in B:
A |
B |
1. There are some methods |
a) the electricity is produced by purely chemical actions. |
2. In chemical method |
b) by conductors moving through a magnetic field. |
3. The electricity is produced |
c) at the surface by the action of light. |
4. This effect is used |
d) thermionic emission and photo-electric emission. |
5. Electrons are liberated |
e) the nature of the method used to produce energy. |
6. Electronic method has such forms |
f) of producing electricity. |
7. The purpose determines |
g) as a means of frequency control. |
8. The battery of a pocket torch |
h) may be used as a means of frequency control. |
9. This small voltage |
i) is one of the examples of application of electrical energy. |
IV. Translate the following sentences:
Існує декілька методів виробництва електричної енергії.
Електромагнітний метод використовується на практиці для генераторів різних розмірів.
При застосуванні термоелектричного методу виробляється дуже мала напруга.
П’єзоелектричний ефект використовується як засіб контролю частоти.
Електронний метод характеризується потоком електронів у вакуумних або газонаповнених лампах
При фотоелектричній емісії електрони виділяються з поверхні під дією світла.
5. Conductors and insulators Word List
a substance речовина
ability здібність, здатність
readily легко, швидко
measurable вимірюваний
influence вплив
distinction розрізнення
perfect досконалий
negligible незначний
filament нитка розжарення
Exercises
I. Form adjectives, using the suffix “-ful”: use, power, success, peace, help, fruit, truth.
II. Find the equivalents:
1. to conduct current a. мати вільні заряди
2. to have free charges b. проводити струм
3. under ordinary conditions c. висока провідність
4. high conductivity d. при звичайних умовах
5. to use for power transmission e. нитка розжарення ел. ламп.
6. to possess some desirable f. використовувати для
properties передачі струму
7. the filament of electric lamps g. мати деякі бажані властивості
III. Match parts of the sentences:
1. All substances a. are termed insulators
2. Those substances that strongly resist b. conduct a little electricity
3. Almost all metals c. is the best conductor
4. Silver d. are good conductors of electricity
5. Most gases conduct e. to prevent electrical loss
6. Gases f. current under certain conditions
7. We have to use an insulator g. are not as good conductors as metals
