In the circuit shown in the figure, the input voltage Vi is 20 VBE=0 and VCE=0. The values of IB,IC and β are given by
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
IB=40μA,IC=10 mA,β=250
b
IB=25μA,IC=5 mA,β=200
c
IB=20μA,IC=5 mA,β=250
d
IB=40μA,IC=5 mA,β=125
answer is D.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Given VBE=0VCE=0 ∴Collector current,IC=(20-0)4×103 or IC=5×10-3 A=5 mA Input voltage, Vi=VBE+IBRB or Vi=0+IBRB or 20=IB×500×103∴ IB=20500×103=40μA∴ Current gain, β=ICIB=5×10-340×10-6=125