Communication System Question 1
Question: When a silicon PN junction is in forward biased condition with series resistance, it has knee voltage of 0.6 V. Current flow in it is 5 mA, when PN junction is connected with 2.6 V battery, the value of series resistance is
Options:
A) $ 100\Omega $
B) $ 200\Omega $
C) $ 400\Omega $
D) $ 500\Omega $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ R=\frac{(2.6-0.6)}{5\times {{10}^{-3}}}=400\Omega $