Exercices corrigés intra 2

I
#




I 1,9m =
r 0.5mm
=




I
I Ba I.At
=



as = =




= 1,9.10[A] 1[s]
=




= 1,910 [C]


nbr d'electron 8
=
11,06.10 "[e]
=




b) I =



= 5
=
=




s =
2,42.10
(En]




2) 5.10°m/s 1NA r 0.1mm
=


v =
I =




as 5 =




0
=
0.318
=
[A/m2



b) v = v ine
= => n= me soon.0,04
2 ↓


3,98.10" [electron/m]
teer n
=




Protons




3) I 200mA
= r 0.8mm
=




5,8.1828 [electron/m3] =
n




1.07-18
ne 0.00054.
vo =
=
(m/]
a)
=




1,602.1819

I fil
b) AV 7.0
=
=
E.L dos


AV R. I
=




6fL R.I =
R
I
=




E.x =

. I




-resiero.-= 1,49.18(v/m

, 4)
L Hr
=
30km 30000m
= =




A =




0 1cm
=
r
=

0.005
=
m




I SOOA
=




Im wivre 8,43.1828 =n 8,43.1628
=
=

e/m




a) 5 E1
=
=




=
b.37.10 Alm




b) I? =




E av=0=EL Omsere
AV R. =
I




A-
.-
3I
=x =

= 7 9.5
=




Scuivre 1, 7.158 [-m]
E 1,7.150 x6,37.10
=
=




0,108
=

[V/m]



500
e=
4,7.104m/s
Vi
=



=




8,43.1028. 78,5.156. 1,602.15


6,03.185]=2,03
1 308
annies
d) x=
=
+


=