Eletronica

L= 3,2mm

E=1800N/c [fluxo=E*costeta*A]

teta= 35°

fluxo= ? [1800*cos 35°*(3,2*10-³)²

=0,015=1,5*10-² N/m²

----

C

----------------------------------------------

{teta=2*Eo*E}

m=1,0mg +\

q=2*10^-8 + \ ^

teta= 30° + \ |ty

Eo=8,85*10^-12 + \_|

+ \|

+ <---O----->

tx

q=Eo*cos 30°

=2*10^-8*cos 30°*(1*10^-6)²

=1,73*10^-20

eixo ty

[|p|=|mg|]

|ty| = mg

|ty| = 1*10^-6*9,8

|ty| = 9,8*10^-6

eixo tx

|tx| = |F.el|

tg teta = co/ca =>tx/ty

tx=ty= tyteta= 9,8*10^-6*0,577

tx = 5,66*10^-6 N

como tx = F.el temos:

F.el=E*q

5,66*10^-6=E*2*10^-8

E= 2,83*10² N/C

teta = 2*Eo*E

teta = 2 * 8,85*10^-12 * 2,83*10^²

teta = 5,0*10^-9

------------------------------------------------

º

--520m

E= 150 N/C | ^

delta V=? | |

d=520m | |)180°

e=1,6*10^-19 | |

| |

^u=?

^u=-w

^u= -fd*d

^u= -E*q*d

^u=-E*cos teta *q*d

^u=-E*cos180°*q*d

^u=-150*(-1)*1,6*10^19*520

^u=1,248*10^-14 J

-----------------------------------------------

12N/C -24N/C

| O---------O

| | |

| | |

|1,3m| O |

| | p |

| | |

| O---------O 17N/C

31N/C----1,3m---

h²= a²+b² lados iguais

h= raiz de a²+b² d*raiz de 2

O------P------O

d¹ d²

2*d=d*raiz2

d=raiz2 / 2 = 0,92m

V¹= K*q/r\

v²= K*q/r \

Vp= K/r * (q¹+q²+q³+q4)

v³= K*q/r /

v4= K*q/r/

Vp= 9*10^9/0,92*(12-24+31+17)*10^36

Vp=