Tecmantmecind

SOLUCION DE EJERCICIOS PROPUESTOS

1. I=V/R=250V/25ohm=10 A I=10 A.
2. V=I*R=1000ohm*0.005A =5V V=5V.3. R=V/I=120V/10A=12ohm R=12ohm.
4. V=I*R=0.5A*30ohm=15V V=15V.
5. V=I*R=V1=I*R1=2A*7ohm=14V.V2=I*R2=2A*35ohm=70V.
V3=I*R3=2A*18ohm=36V.
Vt=V1+V2+V3=14V+70V+36V=120V.
6.V=I*R=V1=I*R1=5A*15ohm=75V.
V2=I*R2=5A*45ohm=225V.
V3=I*R3=5A*70ohm=350V.
Vt=V1+V2+V3=75V+225V+350V=650V.
7. W=I*V=Rt=R1+R2+R3=15ohm+45ohm+50ohm=110ohm.
I=V/R=110V/110ohm=1AW=I*V=1A*110V=110W.
8. Rt=R1+R2+R3=7ohm+35ohm+18ohm=60ohm
Vt=I*Rt=2A*60ohm=120v
Wt=Vt*I=120V+2A=240W
V1=I*R1=2A*7ohm=14VV2=I*R2=2A*35ohm=70V
V3=I*R3=2A*18ohm=36V
W1=I*V1=2A*14V=28W
W2=I*V2=2A*70V=140W
W3=I*V3=2A*36V=72W
9.Rt=R1+R2+R3=15ohm+45ohm+70ohm=130ohm
Vt=I*Rt=5A*130ohm=650V
Wt=Vt*I=650V*5A=3250W
V1=I*R1=5A*15ohm=75V
V2=I*R2=5A*45ohm=225VV3=I*R3=5A*70ohm=350V
W1=I*V1=5A*75V=375W
W2=I*V2=5A*225V=1125W
W3=I*V3=5A*350V=1750W
10. I1=V/R1=110V/1000ohm=0.11AI2=V/R2=110V/5000ohm=0.022A
I3=V/R3=110V/2000ohm=0.055A
It=I1+I2+I3=0.11A+0.022A+0.055A=0.187A
Wt=V*It=110V*0.187A=20.57W.