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rolapkoji
@rolapkoji
July 2023
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помогите даю 100 балов пжж срочно!
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1Manka1
Verified answer
Задача1
Дано:
t=10хв=600с
Q=3кДж=3000Дж
I=1A
Знайти:
R-?
Q=I²Rt→R=Q/(I²t)=3000/(1²*600)=5 Ом
Задача2
Дано:
R1=10Ом
R2=20Oм
U=240B
t=1хв=60с
Знайти:
Q-?
R=R1+R2
Q=I²Rt=(U/R)²Rt=(U²*t)/R=(U²*t)/(R1+R2)=(240²*60)/(10+20)=115200Дж
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Answers & Comments
Verified answer
Задача1Дано:
t=10хв=600с
Q=3кДж=3000Дж
I=1A
Знайти:
R-?
Q=I²Rt→R=Q/(I²t)=3000/(1²*600)=5 Ом
Задача2
Дано:
R1=10Ом
R2=20Oм
U=240B
t=1хв=60с
Знайти:
Q-?
R=R1+R2
Q=I²Rt=(U/R)²Rt=(U²*t)/R=(U²*t)/(R1+R2)=(240²*60)/(10+20)=115200Дж