Предмет: Физика, автор: DimasTA241104

Помогите пожалуйста! Срочно нужно​

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Автор ответа: vined33
1

R=\frac{U}{I}

U=0,012 кВ=12 В

I=808 мА=0,808 А

R=\frac{12}{0,808}≈14,85 Ом

U=IR

I=1812 мА=1,812 А

R=570 Ом

U=1,812*570=1032,84 В≈1,03 кВ

I=\frac{U}{R}

U=0,06 кВ=60 В

R=200 Ом

I=\frac{60}{200}=0,3А=300мА

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