Предмет: Физика, автор: GoldenChild

Помогите пожалуйста! Найти заряд і напряжение на каждом из конденсаторов + общую емкость

Приложения:

Ответы

Автор ответа: Kovalenkoua

дано

C1 = 1мкФ, C2 = 2 мкФ, C3 = 2 мкФ, C4 = 3 мкФ

Q1 = 2 мкКл.

найти

решение

при параллельном соединении

U1=U2=U3=U4 =Q1/C1 = 2 мкКл/1 мкФ = 2 B

Q2=C2 U2=2 мкФ * 2 B = 4 мкКл

Q3=C3 U3=2 мкФ * 2 B = 4 мкКл

Q4=C4 U4=3 мкФ * 2 B = 6 мкКл

при последовательном соединении

Q1=Q2=Q3=Q4= 2 мкКл.

U1=Q1/C1 = 2 мкКл/1 мкФ = 2 B

U2=Q2/C2 = 2 мкКл/2 мкФ = 1 B

U3=Q3/C3 = 2 мкКл/2 мкФ = 1 B

U4=Q4/C4 = 2 мкКл/3 мкФ = 0.67 B

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: volkovap387

Помогите пожалуйста

Fill in the gaps with the correct preposition.

1. What time do you get up … the morning?

2. What do you like doing … the weekend?

3. Where do you usually go … Easter?

4. What do you usually do … Friday evenings?

5. What do you wear … a cold winter day?

6. What are you doing … the moment?

7. What time do you go to bed … night?

8. Did you go on holiday … July?

9. Do you eat lunch … noon?

10. What do you usually do … Christmas Day?

II. Fill in the gaps with the correct preposition.

1. A: What time shall we meet? B: Let's meet … 8 o'clock.

2. A: When is the next meeting? B: It's … Wednesday, next week.

3. A: What time do you want to have your appointment? B: Oh, any time … the morning.

4. A: They got married … 1992, you know. B: Really? I thought it was 1991.

5. A: Do you go to bed early? B: No. I usually go to bed … midnight.

6. A: What time shall we have lunch? B: I'd like to eat … noon, if that's all right.

7. A: When are you going shopping? B: Probably … the weekend.

8. A: When was her baby born? B: …… July 27th.

9. A: I love summer holidays. В: I prefer to go on holiday … winter.

10. A: When is your next exam? B: …… Tuesday afternoon.

III. Choose the right variant.

1. My birthday is … November 10th.

A at В on C in

2. Let’s go swimming … tomorrow afternoon.

A at В on C -

3. Farmers usually get up … dawn.

A in В at C on

4. We went to Spain … last summer.

A at В - C on

5. We always buy chocolate eggs … Easter.

A in В at C on

6. My parents are moving house … May.

A in В on C at

7. The plane leaves … twenty minutes.

A at В in C on

8. The last train to London leaves … midnight.

A in В at C on

IV. Choose the correct word.

1. There is a nice picture of our town on / at / in this magazine.

2. The dog is hiding in / under /on the chair.

3. Lets go shopping in /at / opposite Oxford Street.

4. Read the note at / under / in the bottom of the page.

5. The Jacksons live at / in / on the second floor.

6. John is in / near / behind bed at the moment. He's not feeling very well.

7. The bakery is at / opposite / on the park.

8. Grandmother loves sitting on / at / in her favourite armchair by the fire.

9. Sarah sits under / beside / in me at school.

10. There is a playground at / under / near the bank.

11. Look at the stars between / in / at the sky.

12. My house is between / on / among the bank and the post office.

13. After the party, there was rubbish in / at / on the floor.

14. Let's meet on / between / at the theatre.

15. There's a very interesting article about UFOs in / on / at the newspaper today.

5 лет назад

Предмет: Русский язык, автор: anna21871

В каких предложениях собирательное числительное является главным членом?

Выбери верные варианты ответа.

1 Дождь шёл уже четверо суток.
2 Волк съел шестерых козлят.
3 Трое друзей отправились в путешествие по странам Европы.
4 Мама погладила мне трое брюк, а я всё равно надел джинсы.
5 Пятеро мальчишек катались на коньках.

5 лет назад

Предмет: Русский язык, автор: buyghjikdfrr

зделайте пожалуйста эти номера

5 лет назад

Предмет: Математика, автор: niceonplay

Расстояние между двумя городами равно 200км. Определите расстояние между изображениями этих городов на карте, если численный масштаб равен : 1/5000000

8 лет назад

Предмет: Математика, автор: MIA18111

помогите с 84 номером СРОЧНО!)

8 лет назад