Предмет: Физика, автор: Yano4ka8002

Зображено мішане з'єднання провідників, всі вони рівні між собою за опором, опір 3 Ом. Знайти повне значення опору всього кола; а також силу струму і напругу на кожному з елементів, повне значення напруги 60 В.

Допоможіть будь ласка ​

Приложения:

dssswrrii: p15 помогитееее пожалуйста!
dssswrrii: почему я в физике не понимаю :(

Ответы

Автор ответа: p15
1

Ответ:

R1=R2=R3=3 Ом

U=60В

__________

R-?

I1-?

I2-?

I3-?

U1-?

U2-?

U3-?

R=R1+R23

1/R23=1/R2+1/R3  => R23=R2*R3/(R2+R3)

R=R1+R2*R3/(R2+R3)

R=3+3/2=4.5 Ом

I1=I=U/R=60/4.5≈13.33А

U1=I1R1=13.33*3=40В

U2=U3=U-U1=60-40=20В

I2=I3=I1/2=13.33/2≈6.67A

Объяснение:

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