23. If the emitter resistor is open, the collector voltage is
27. If the emitter resistance decreases, the
a. Low b. High c. Unchanged d. Unkiiown
a. Q point moves up b. Collector current decreases c. Q point stays where it is d. Current gain increases
24. If the collector resistor is open, the collector voltage is a. Low b. High c. Unchanged d. Unknown 25. When the current gain increases from 50 to 300 in an emitter-biased circuit, the collector current a. Remains almost the same b. Decreases by a factor of 6 c. Increases by a factor of 6 d. Is zero 26. If the emitter resistance decreases, the collector voltage a. Decreases b. Stays the same c. Increases d. Breaks down the transistor
Chapter 8 1. For emitter bias, the voltage across the emitter resistor is the same as the voltage between the emitter and the a. Base b. Collector c. Emitter d. Ground 2. For emitter bias, the voltage at the emitter is 0.7 V less than the a. Base voltage b. Emitter voltage c. Collector voltage d. Ground voltage