Предмет: Физика, автор: maksdubovoj8

Яка кількість теплоти виділяється у провіднику опором 20
Ом за 1,5 хв, який підключене до напруги 60 В

Ответы

Автор ответа: Heros555

0

R= 20 Ом

t= 1,5 мин= 90 с

U= 60 В

--------------------------

Q-?

Q= $\frac{U^{2} }{R}*t$ = (60 В²* 90 с)/20 Ом= 16200 Дж

Ответ: 16,2 кДж

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Charles Dickens, one of the greatest and most popular English novelists, was born on the 7th of February, 1812, in a small English town. He was a weak child and did not like to take part in noisy and active games. The little boy was very clever and learnt to read at an early age. He read a lot of book in his childhood. When he was about six, someone took him to the theatre for the first time. He saw a play by Shakespeare and liked it so much that he decided to write a play of his own. When it was ready, he performed it with some of his friends. Everybody enjoyed the performance, and the little writer felt fery happy.

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