Q. When used for amplification, the output port side of a BJT behaves as controlled current source. According to the above, the variation of which one of the following does not change the output current of an
ideal BLT? (The BJT is being used in a common emitter amplifier circuit)

a. Load resistance
b. Collector to base bias voltage
c. Both load resistance and collector to base bias voltage
d. Base-emitter bias voltage

• ans d
  V base to emitter voltage always constant i.e. 0.7 volt
• 10 years agoHelpfull: Yes(0) No(0)