Question
Question: In p – n –p transistor circuit, the collector current is 10 m A. if 90%oftheholes reach the collecto...
In p – n –p transistor circuit, the collector current is 10 m A. if 90%oftheholes reach the collector, the emitter and base currents respectively are.
A
10 mA, 1 mA
B
22 mA, 11 mA
C
11 mA, 1 mA
D
20 mA, 10 mA
Answer
11 mA, 1 mA
Explanation
Solution
: the voltage gain of a common emitter amplifier
Av=−RiβRoorViVo=−RBβRC
Output voltage
∴Vo=−RBβRCVi=−150×5×0.01=−2.5V