Exercise 42.31
A Review!
Part A
The satu

Question

Exercise 42.31
A Review!
Part A
The saturation current for a junction diode is 18
microamps.
Calculate the resistance of the diode at forward potential differences of 0.20 V when T = 17°C.
Express your answer with the appropriate units.
HA
?
Rforward =
Value
Units
Submit
Request Answer
Part B
Calculate the resistance of the diode at reverse potential differences of 0.20 V when T = 17°C.
Express your answer with the appropriate units.
MA
?
Rreverse =
Value
Units

Kunduz · Accepted Answer

R = Vr
KT
Vr =
R
K is boltzmann
q is charge of e
e
Id
q
Id = Isle
I = 18 uA = 18x10 A
for this question, part (6)
V = 0.20v
T= 17°C
273+17 = 290K
-
V = KI
q
2.49 x 10
-23
- 1.38 x 10"
4290
1.602 x 10-19
0.20/2.498102
Id = (18x106) e
= 55 2736 35 X10 6
Id = 0.055 A
R = VI
Id
2.498102
0.05
0.0249
0.05
0.498 ^
Id = Is [exp/eu
(KBT)
-1
same formula

Exercise 42.31 A Review! Part A The saturation current for a junction diode is 18 microamps. Calculate the resistance of the dio