railway RRB Technician Grade 1 Mock Test 2024 Analog Electronics Bipolar Junction Transistors BJT As a Amplifier
The voltage gain in a common emitter configuration is:
1
\(\rm -\frac{hfeR_L}{R_o}\)
2
-hfe
3
\(\rm -\frac{hfeR_L}{R_i}\)
4
hie + (1 + hfe) Re