يسي

1. 14
3310291010
4
04
1
E = 6V
R = 100 Ω
(b)L
KD
It =0K
2i (t)
AB
2
1I0
I0
IIt’ =0K
2D
1Ub(t)(b)
2τ
3
2
τ
L(b)
04
I23
1«»«»
3
2t =0
λ

2. 24
3
3
m0
N0

t =0
λA0
II
1
2
3ELib
00
I
t =0V1 = 100 mlC1
m0
E ( MeV)
(… ) protons , (… ) neutrons
…… ……
…… ……
……= … …
E 1
E 2
E 3

3. 34
4
5
2
1
3m0C1
4
5t = 75 (S)
6
t = 0
II
t’ = 0
12
00
E
C1 = 100 µFC2=
R1R2R3
KK’
A
B

4. 44
( R3 = 0 Ω)KK’
( d , c , b , a )6
K2K’2
2
1( C2 , C1 )(Ceq)
3«»(Ceq)( C2 , C1 )
4( d , c , b , a )
5(b)(d)
(Ceq)( C2 )
E
( C2 , C1 )K2K’
1
( d , c , b , a )
τ)C1R1R3
R1
K’1K1
2
1( d , c , b , a )
3τ’
4τ’C1R2R3R2
5(τb‫و‬τd)‫ثم‬(τd‫و‬τc).
6
7( R3 ≠ 0 Ω)C1
( R3 )