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Усі фізичні формули
        9 клас
Заряд




 1
Закон Кулона




     2
Закон збереження електричного заряду




q – заряд тіла, Кл;




                      1
Сила струму




    1
Напруга




  1
Питомий опір




     1
Закон Ома




 U – напруга, В;
I – сила струму, A;
R – Опір провідника, Ом.



                     1
Послідовне з’єднання провідників.




                        1
I – сила струму, A;
U – напруга, В;
 R – Опір провідника, Ом.
Паралельне з’єднання провідників.




                        1
I – сила струму, A;
U – напруга, В;
 R – Опір провідника, Ом.
Закон Фарадея




     1
Робота струму




     1
Потужність струму




P– потужність електричного струму, Вт;
U – напруга, В;
I – сила струму, A.



                  1
Закон Джоуля-Ленца




Q– кількість теплоти, Дж;
I – сила струму, A;
R – Опір провідника, Ом;
t – час, с.


                   1

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