ЗАДАЧА 3
Електрически чайник със съпротивление 100 е
включен към напрежение 220 V. Определете:...
![subject](/tpl/images/cats/fizika.png)
Physics, 18.11.2020 15:40 imalivingpotato
ЗАДАЧА 3
Електрически чайник със съпротивление 100 е
включен към напрежение 220 V. Определете:
а) какво количество топлина в kJ се отделя за 2 min;
б) с колко ще се промени мощността на чайника, ако се включи
към напрежение 120 V.
Търси се:
с
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Answers: 2
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