Electronic Devices Question 20
Question: While a collector to emitter voltage is constant in a transistor, the collector current changes by 8.2 mA when the emitter current changes by 8.3 mA. The value of forward current ratio hfe is
[KCET 2002]
Options:
A) 82
B) 83
C) 8.2
D) 8.3
Show Answer
Answer:
Correct Answer: A
Solution:
$ h _{fe}={{( \frac{\Delta i _{c}}{\Delta i _{b}} )} _{V _{ce}}}=\frac{8.2}{8.3-8.2}=82 $
