1. RX M,N,P
P K2 K1
I1 B C
N M
V AB V AC I1 N I2P
V BD V DC I1M I2RX
P
RX M
N
RX M ,N ,P
V BC
S
1

2. – -
M,N, P
M
K2 K1
P
N
2

3. NO. M N P Rx [Rx – Rx]
1 0.2 2.9 .58
2 0.3 1 2 .6
3 0.4 1 1.5 .6
4 0.5 1 1.2 .6
Rx 1 . 23
Rx 0 . 17
M P
R x
N
LnR x
LnM LnP LnN
R x M P N
R x
M P N
Rx
Rx
Rx M P N
RX
Rx
-
p
C
3

4. A
AC
Rx P
BC
NO. P AC BC Rx Rx Rx
56.3
1 0.4 43.7
0.51
2 0.5 52 48 0.54
3 0.6 48 52 0.55
4 0.7 45 55 0.57
5 0.8 42.1 57.9 0.58
R x
0.55
R x
Rx Rx Rx
-
L
Rx
A
M+N M N L X
100cm 97.6 2.4 70m 3.36
2 2
A D 0 .7 0 . 38
4 4
l 10 m Rx
-
4

5. 2 NL
X Ln 2 LnN LnL Ln ( M N)
M N
X N L (M N)
X N L M N
X X X
Rx
N M
AB C
Rx
AB C
M ,N , P
Rx
Rx
Rx
Rx
Rx
5

6. Rx Rx Rx
2 NL
X Ln 2 LnN LnL Ln ( M N)
M N
X N L (M N)
X N L M N
X X X
6