1 / 5

PUTEREA ELECTRICA

PUTEREA ELECTRICA. EXERCI Ţ II E X PLICATIVE. Închide. ENUNŢUL PROBLEMEI. 6.3. O baterie are t.e.m = 32 V, iar bornele ei se unesc printr-un fir lung de 3 m. Î n fir se produce o cadere de poten ţ ial de 30 V ş i se consum ă o putere de 6 W. Se cere : rezisten ţ a interioar ă a bateriei

garry
Télécharger la présentation

PUTEREA ELECTRICA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PUTEREA ELECTRICA EXERCIŢII EXPLICATIVE Închide

  2. ENUNŢUL PROBLEMEI 6.3. O baterie are t.e.m = 32 V, iar bornele ei se unesc printr-un fir lung de 3 m. În fir se produce o cadere de potenţial de 30 V şi se consumă o putere de 6 W. Se cere : • rezistenţa interioară a bateriei • rezistenţa firului • timpul necesar pentru a trece prin circuit 720 C.

  3. Datele problemei şi configurare grafică E = 32 V l = 3 m U = 30 V P = 6 W a) r=? b)R=? c)t=? q=720 C R l - + E, r I

  4. P U Rezolvarea problemei • a,b) U = I·R (1) P = U·I → I = (2) Introducem (2) în (1) R l - + I E, r

  5. Rezolvarea problemei

More Related