L2 = 16 * L1.
T2 / T1 - ?
Электрическим колебательным контуром называется последовательно соединённый конденсатор и катушка. Периодом колебаний маятника Т называется время одного полного колебания.
Период собственных свободных колебаний Т электрического контура определяется формулой Томсона: Т = 2 * П * √(L * С), где П - число пи, L - индуктивность катушки, С - ёмкость конденсатора.
Т1 = 2 * П * √(L1 * С).
Т2 = 2 * П * √(L2 * С) = 2 * П * √(16 * L1 * С) = 4 * 2 * П * √(L1 * С) = 4 * Т1.
T2 / T1 = 4 * Т1 / Т1 = 4.
Ответ: период свободных электрических колебаний увеличится в 4 раза: T2 / T1 = 4.
Автор:
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Complete the sentences by filling in the missing word.
1________you know him?
A. Are
B. Do
C. Is
D. –
2. Bill’s American, but ______friend is British.
A. their
B. him
C. her
D. his
3. Do you have any sisters? No I________
A. am not
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A. is
B. has
C. had
D. have
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A. much does
B. many are
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6. Nicholas: Victor, __________your phone?
A. could I to use
B. could I use
C. do I to use
D. could I to use
7. Victor:__________.
A. Yes, please take
B. Yes, thank you
C. Yes, here you are
D. No, thank you
8. Sofia: Hello, Jenny. It’s me, Sofia
A. Where are you?
B. Where you are?
C. You are where?
D. are you where?
9. Sofia: I’m at home am I telephoning at bad time?
Jenny: ________
A. No, you aren’t
B. B. Yes, you did
C. C. No, you don’t
10. There is _________butter on the plate.
A. a
B. some
C. many
D. a lot
11. ________a hole in my shoe.
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12.. Sunday, Monday, _________, Wednesday.
A. Friday
B. Tuesday
C. Thursday
D. Saturday
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Complete the sentences by filling in the missing word.
1________you know him?
A. Are
B. Do
C. Is
D. –
2. Bill’s American, but ______friend is British.
A. their
B. him
C. her
D. his
3. Do you have any sisters? No I________
A. am not
B. don’t
C. hasn’t
D. haven't
4. My father_______got a villa of his own.
A. is
B. has
C. had
D. have
5. How_______the price?
A. much does
B. many are
C. much is
D. costs
6. Nicholas: Victor, __________your phone?
A. could I to use
B. could I use
C. do I to use
D. could I to use
7. Victor:__________.
A. Yes, please take
B. Yes, thank you
C. Yes, here you are
D. No, thank you
8. Sofia: Hello, Jenny. It’s me, Sofia
A. Where are you?
B. Where you are?
C. You are where?
D. are you where?
9. Sofia: I’m at home am I telephoning at bad time?
Jenny: ________
A. No, you aren’t
B. B. Yes, you did
C. C. No, you don’t
10. There is _________butter on the plate.
A. a
B. some
C. many
D. a lot
11. ________a hole in my shoe.
A. It is
B. There’s
C. it has
D. He is
12.. Sunday, Monday, _________, Wednesday.
A. Friday
B. Tuesday
C. Thursday
D. Saturday
Предмет:
Английский языкАвтор:
LvbnhbqОтветов:
Смотреть
Complete the sentences by filling in the missing word.
1________you know him?
A. Are
B. Do
C. Is
D. –
2. Bill’s American, but ______friend is British.
A. their
B. him
C. her
D. his
3. Do you have any sisters? No I________
A. am not
B. don’t
C. hasn’t
D. haven't
4. My father_______got a villa of his own.
A. is
B. has
C. had
D. have
5. How_______the price?
A. much does
B. many are
C. much is
D. costs
6. Nicholas: Victor, __________your phone?
A. could I to use
B. could I use
C. do I to use
D. could I to use
7. Victor:__________.
A. Yes, please take
B. Yes, thank you
C. Yes, here you are
D. No, thank you
8. Sofia: Hello, Jenny. It’s me, Sofia
A. Where are you?
B. Where you are?
C. You are where?
D. are you where?
9. Sofia: I’m at home am I telephoning at bad time?
Jenny: ________
A. No, you aren’t
B. B. Yes, you did
C. C. No, you don’t
10. There is _________butter on the plate.
A. a
B. some
C. many
D. a lot
11. ________a hole in my shoe.
A. It is
B. There’s
C. it has
D. He is
12.. Sunday, Monday, _________, Wednesday.
A. Friday
B. Tuesday
C. Thursday
D. Saturday
Предмет:
Английский языкАвтор:
LvbnhbqОтветов:
Смотреть
Complete the sentences by filling in the missing word.
1________you know him?
A. Are
B. Do
C. Is
D. –
2. Bill’s American, but ______friend is British.
A. their
B. him
C. her
D. his
3. Do you have any sisters? No I________
A. am not
B. don’t
C. hasn’t
D. haven't
4. My father_______got a villa of his own.
A. is
B. has
C. had
D. have
5. How_______the price?
A. much does
B. many are
C. much is
D. costs
6. Nicholas: Victor, __________your phone?
A. could I to use
B. could I use
C. do I to use
D. could I to use
7. Victor:__________.
A. Yes, please take
B. Yes, thank you
C. Yes, here you are
D. No, thank you
8. Sofia: Hello, Jenny. It’s me, Sofia
A. Where are you?
B. Where you are?
C. You are where?
D. are you where?
9. Sofia: I’m at home am I telephoning at bad time?
Jenny: ________
A. No, you aren’t
B. B. Yes, you did
C. C. No, you don’t
10. There is _________butter on the plate.
A. a
B. some
C. many
D. a lot
11. ________a hole in my shoe.
A. It is
B. There’s
C. it has
D. He is
12.. Sunday, Monday, _________, Wednesday.
A. Friday
B. Tuesday
C. Thursday
D. Saturday
Предмет:
Английский языкАвтор:
LvbnhbqОтветов:
Смотреть