The output impedance of an emitter follower is______________?

Related Mcqs:

1. An emitter follower has ______________input impedance?

   A. Zero
   B. Low
   C. High
   D. None of the above

2. Emitter follower is used for ________________?

   A. Current gain
   B. Impedance matching
   C. Voltage gain
   D. None of the above

3. The voltage gain of an emitter follower is _____________?

   A. Much less than 1
   B. Approximately equal to 1
   C. Greater than 1
   D. None of the above

4. Emitter follower is a _______________circuit?

   A. Voltage feedback
   B. Current feedback
   C. Both voltage and current feedback
   D. None of the above

5. Emitter follower is used for________________?

   A. Current gain
   B. Impedance matching
   C. Voltage gain
   D. None of the above

6. When current feedback (negative) is applied to an amplifier, its output impedance ________________?

   A. Is increased
   B. Is decreased
   C. Remains the same
   D. None of the above

7. If voltage feedback (negative) is applied to an amplifier, its output impedance ______________?

   A. Remains the same
   B. Is increased
   C. Is decreased
   D. None of the above

8. If the output of an amplifier is 10 V and 100 mV from the output is fed back to the input, then feedback fraction is_____________?

   A. 10
   B. 1
   C. 01
   D. 15

9. When current feedback (negative) is applied to an amplifier, its input impedance _____________?

   A. Is decreased
   B. Is increased
   C. Remains the same
   D. None of the above

10. When voltage feedback (negative) is applied to an amplifier, its input impedance _______________?

    A. Is decreased
    B. Is increased
    C. Remains the same
    D. None of the above