Semiconducting Devices Question 221
Question: A potential barrier of 0.50 V exists across a P-N junction. If the depletion region is $ 5.0\times {{10}^{-7}} $ m wide, the intensity of the electric field in this region is
[UPSEAT 2002]
Options:
A) $ 1.0\times 10^{6}V/m $
B) $ 1.0\times 10^{5}V/m $
C) $ 2.0\times 10^{5}V/m $
D) $ 2.0\times 10^{6}V/m $
Show Answer
Answer:
Correct Answer: A
Solution:
$ E=\frac{V}{d}=\frac{0.5}{5\times {{10}^{-7}}}=10^{6}V/m $ .
