Cum estimam corect puterea electrica a unui bec?

Metoda practica prin care se estimeaza cu ajutorul unui grafic simplu puterea electrica absorbita de catre un consumator, in acest caz un bec electric cu filament incandescent

Film similar:
https://www.youtube.com/watch?v=w1te_BUBCUE&t=3s

Sau:
https://www.youtube.com/watch?v=iB282yKm8io&t=17s

Ori:
https://www.youtube.com/watch?v=KPdaa17Wd-Q&t=291s

Sau:
https://www.youtube.com/watch?v=X4eSDrezMWc

Ori:
https://www.youtube.com/watch?v=YM50T2WHIJ8&t=1s

Видео Cum estimam corect puterea electrica a unui bec? канала Nicolae Alupoaie