Предмет: Физика, автор: chamomiletea0

ДАЮ 20БАЛЛОВ ФИЗИКА 8 КЛАСС

Какими свойствами отличается нить накала от

подводящих проводов - электродов (см. рис.)?

Почему?

Приложения:

Ответы

Автор ответа: rashidov200786

1

Ответ:Нить накала обладаеть высоким сопротивлением и производиться из тугоплавких металлов,обычно в лампах накаливания используется вольфрамовая спираль толщиной 0,4мкр.Температура проводника при котором тепловая энергия переходит в видимую инфокрасную около 600 градусов, а температура накаливания дистигает более 2000-2800 градусов,нить должна выдерживатьподобные нагрузки

Электродыявляется проводниками тока к нити накаливания , обладает гораздо меньшим сопротивлением , нагреву практически не подвергаются и поэтому сделано из обычного никелированного железа

Объяснение:

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: motronenkoana

Choose the correct word in brackets. There is a model to help you. Model: There (is, are) are students in the classroom. (student). 1. How (much, many) in our do you need? (money) 2. Do you have (a little, a few) for the parking meter? (coin) 3. We read (several, a bit of) a lot of English class last year. (story) 4. There (was, were) used in the construction of that building. (glass) 5. The prisoners were given (a, some)
and a glass of water. (bread) 6. Did you receive (a few, some)
from your brother? (mail) 7. Yes, and my sister sent me (a bit of, a few)
too. (letter) 8. All of (this, these) must be replaced. (equipment)
a group of in the playground. (child) 10. If your
(sugar) 11. There (is, are)
9. There (is, are)
lemonade is too sour, add (a little, a few)
twelve
to do. (work) 15. I need
in a foot. (inch) 12. My parents gave me (plenty of, many)
but I didn't listen... (advice) 13. If your tree doesn't have (many, much)
it might be sick. (leaf) 14. I have (a lot of, many)
(a, some) ____drink of. (water) 16. He has had (much, many)
graduated from CEGEP. (job) 17. There (was, were)
concert. (person) 18. How (many, much)
19. Would you like (some, a)__________ bowl of
for this apartment (furniture).
since he
at the
lots of
did you put in this soup? (salt)
(salad)? 20. We need (some,
new slice of in the construction of that building. (glass) 5. The prisoners were given (a, some) and a glass of water. (bread) 6. Did you receive (a few, some) from your brother? (mail) 7. Yes, and my sister sent me (a bit of, a few) too. (letter) 8. All of (this, these) must be replaced. (equipment) a group of in the playground. (child) 10. If your (sugar) 11. There (is, are) 9. There (is, are) lemonade is too sour, add (a little, a few) twelve to do. (work) 15. I need in a foot. (inch) 12. My parents gave me (plenty of, many) but I didn't listen... (advice) 13. If your tree doesn't have (many, much) it might be sick. (leaf) 14. I have (a lot of, many) (a, some) ____drink of. (water) 16. He has had (much, many) graduated from CEGEP. (job) 17. There (was, were) concert. (person) 18. How (many, much) 19. Would you like (some, a)__________ bowl of for this apartment (furniture). since he at the lots of did you put in this soup? (salt) (salad)? 20. We need (some, new a) m

2 года назад

Предмет: Литература, автор: Maksimus22087

СРОЧНО. Много балов!Виписати з "русалоньки 7-в " 24 прислівники

2 года назад

Предмет: Английский язык, автор: katyakan2011

An old gentleman was very
Un happy about young boys who lived near
him. They were always
play the guitar
OuDL
Sonas
4 and sang strange
The old gentleman thought they had very bad
didn't know the difference between right and
One day he was taking a walk in the
wrong
manners and
boys standing
near his home when he saw some young
was
happening
around a small cat. The old man went up to the boys and asked them what One of the boys said to him: "We are having a Competition . We're
telling lies and the one who tells the biggest one will
Keel
manners
in he da gentleman toughie that was good, opportfliri ty to teach the boys.
good
and to give them a in my life!" When the boys
lesson. So, he said to them: "I've never told a
"You've won! You can take the cat
these words they shouted

Помогите составить краткий пересказ…

2 года назад

Предмет: Українська мова, автор: goymariya1980

Правильно оформлено цитату
А) Іван Франко висловлює оптимістичне бачення майбутнього України: « Та прийде час, і ти
огнистим видом засяєш у народів вольнім колі».
Б) «Твоїм будущим душу я тривожу» , болісно писав Франко.
В) Поет вірить у воскресіння нації: -
-О ні! Не самі сльози і зітхання
Тобі судились! Вірю в силу духа
І в день воскресний
Твойого повстання.

8 лет назад

Предмет: Математика, автор: miskloobnichka27

Туристы на байдарке плыли 2,4 часа по течению реки и 1,8 часов против течения. Путь, который байдарка проплыла по течению, был на 14,1 км больше, чем путь, пройденный против течения, Найдите скорость байдарки в стоячей воде, если скорость течения равна 2,5 км/ч.
Срочно! Дам 30 баллов

8 лет назад