Fisica

EJERCICOS RESUELTOS DE CIRCUITOS RC



























[pic]

[pic]

[pic]

[pic]



I (t=10s) = 4, 06 [pic]A

I (t=10s) =4,06 [pic]A















































t=RC

t=������=RC



a)

q (t) =ℇ. C (1- [pic])

q (t=������) = (6v) (1, 5 * [pic]q (t=������) =5.69 [pic]c

q (t=������) =5.69µc



b)

[pic]
[pic]

I (t=������) =[pic]

I (t=������) =1.1[pic]A

I (t=������) =1.1µA





c)

P=Iℇ

P= (1.1[pic]A) (6v)P=6.6[pic]Watts

P=6.6µW



d)

P=I (IR) =[pic]

P=[pic]

P=2.4[pic]Watts

P=2.4 µW













e)



U=[pic] [pic]



[pic]U =[pic] ([pic] [pic]



U (t) = [pic]

I (t)

U (t)=[pic].I (t)

U (t=������)= [pic]* 1.1[pic]A

U (t=������)=4.17 [pic]Watts

U(t=������) =4.17µW



















[pic]



[pic]



a) C=[pic] Q=C.V

Q= 6 [pic].100v

Q=600 [pic]

Q=600µcb) V=I.R

I= [pic]

I=0.2A




c) ������=RC=(500Ω)(6 [pic]

������=3000 [pic]

������=3 [pic]

������=3ms













d)

q (t)=Q [pic]

q (t=6 [pic] 600 [pic])[pic]

q (t=6 [pic]

q (t=6 [pic]



e) U=[pic]

U= [pic] (6 [pic]) ([pic]

U=3 [pic]U=30 [pic]

U=30 mJ



f) U=[pic]

U (t)=[pic]

V (t)=RI (t)

V (t)=R. ( [pic]

V (t)=V.[pic]

U (t)= [pic] C [V.[pic] [pic]

U (t)= [pic]C [pic] [pic]

U (t)= [pic]. [pic]







[pic]



a)

q (t) =ℇ. C (1- [pic] )

q (t=0) =5v. 1.6*[pic]*1

q (t=0)=8*[pic]

q...