Capacitors in Series and Parallel

Combined capacitance (C) of capacitors connected in series:

1 = 1 + 1 + 1 +...

C C C2 C3

Combined capacitance (C) of capacitors connected in parallel:

C = C1 + C2 + C3 +...

Usually two or more capacitors are not connected in series in real circuits. Capacitors are connected in parallel to get a very large capacitance.

Exercise 2. Translate into English.

1. Когда элементы цепи соединены последовательно каждый элемент имеет одинаковый ток.

2. Большинство цепей - это смесь последовательных и параллельных соединений.

3. Когда резисторы соединены последовательно, их объединенное сопротивление равно индивидуальным сопротивлениям, сложенным вместе.

4. Когда резисторы соединены параллельно, их объединенное сопротивление меньше, чем сопротивление любого из индивидуальных сопротивлений.

5. Конденсаторы соединяют параллельно, чтобы получить очень большую емкость.

6. Общая емкость конденсаторов, соединенных параллельно, равна сумме емкостей всех конденсаторов.

PART II

About Myself

TEXT 1

MY BIOGRAPHY

I am going to tell you about myself. My name is Natasha Serova. I am 17. I was born in Moscow on the 5^th of March, 1995 (fifth of March nineteen ninety five).

My family is not very large. We have five people in our family. I live with my parents, my younger sister and my grandmother. My father's name is Vladimir Ivanovich. He is forty years old. He is a mechanic and he works at a garage. My mother’s name is Vera Petrovna. She is thirty-nine years old. She is a doctor and she works at a hospital. My younger sister Marina is a pupil. She is in the seventh form. My grandmother lives with us. She doesn't work. She is a pensioner. I love my family. We are all friends and we love each other.

We live in a big flat in a new house. There are four rooms in our flat: a living room, a study, two bedrooms, a kitchen, and a bathroom. We have all modern conveniences: gas, hot water, running water, electricity and telephone.

I have my duties about the house. I must go shopping, clean the rooms. It’s not difficult for me. I want our home to be clean and tidy. I think there is no place better than home.

I studied at school number 129. We had many well-educated teachers at our school. I was a good pupil and I did well in all subjects. My favourite subjects at school were Mathematics, Russian and English. Now I’m a first year student of the Rostov State Transport University.

СЛОВАРЬ

biography [baI'OgrqfI] биография

about myself о себе

parents ['pFqrents] родители

mechanic [mI'kxnIk] механик

garage ['gxrRZ] гараж

younger младшая

pensioner ['penSqnq] пенсионер

living room жилая комната

study кабинет

bathroom ванная, туалет

bedroom спальня

modern современный

conveniences [kqn'vi:njqnsIz] удобства

running water холодная вода

duty ['dju:tI] обязанность

tidy ['taIdI] опрятный

class-mate одноклассник, школьный товарищ

educated ['edju:keItId] образованный

Задание 2.1 Составьте рассказ о себе, заполнив пропуски.

1. My name is …. I am … years old. I was born on … in ….
2. We have … people in our family. I live with …
3. My father's name is …. He is … years old. He is a … and he works ….
4. My mother’s name is …. She is … years old. She is a ….
5. I have a (younger/elder sister/brother). He/she is a ….
6. We live in a …. There are … rooms in our flat: …, …, …, and a …. We have all modern conveniences: …, …, …, ….
7. I have my duties about the house. I must …, ….. I always help my … about the house.
8. I studied at school number …. My favourite subjects at school were …, … and ….
9. Now I’m a first year student at ….
10. We have many subjects at …. My favourite subjects are ….
11. I like reading. I like to read … and I also like to read ….
12. I like to listen to modern music. I like to listen to …. My favourite composer is ….
13. I like to watch TV. My favourite programmes are ….

Text 2

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