R
F
=312[MΩ]
L
D
=22.7[cm]
L
T
=2.7[cm]
I
F
・R
F
= E・L
D
---(1)
E・L
T
+ 6V
GEM
= I
F
・R
FT
---(2)
V
C
= I
F
・(R
F
+ R
FT
)
---(3)
From (1),(2),
R
FT
= (L
T
+ 6V
GEM
/E)・(R
F
/L
D
)
---(4)
From (3),(4),
V
C
= (R
F
+ R
FT
)・(E・L
D
)/R
F