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11. Ac emitter resistance equals 25 mV divided by the a. Quiescent base current b. DC emitter current c. AC emitter current d. Change in collector current b. DC emitter current 12. To reduce the distortion in a CE amplifier, reduce the 13. If the ac voltage across the emitter diode is 1 mV and the ac emitter current is 0.1 mA, the ac resistance of the emitter diode is
17 14. A graph of ac emitter current versus ac base-emitter voltage applies to the 15. The output voltage of a CE amplifier is a. Amplified b. Inverted c. 180 degrees out of phase with the input d. All of the above d. All of the above 16. The emitter of a CE amplifier has no ac voltage because of the 17. The voltage across the load resistor of a CE amplifier is 18. The ac collector current is approximately equal to the 19. The ac emitter current times the ac emitter resistance equals the a. Dc emitter voltage b. AC base voltage c. AC collector voltage d. Supply voltage b. AC base voltage 20. The ac collector current equals the ac base current times the Chapter 10 1. The emitter is at ac ground in a 2. The output voltage of a CE stage is usually 3. The voltage gain equals the output voltage divided by the a. Input voltage b. AC emitter resistance c. AC collector resistance d. Generator voltage a 4. The input impedance of the base increases when 5. Voltage gain is directly proportional to 6. Compared to the ac resistance of the emitter diode, the feedback resistance of a swamped amplifier should be