Emitter follower is used for________________?

Related Mcqs:

1. The output impedance of an emitter follower is______________?

   A. High
   B. Very high
   C. Almost zero
   D. Low

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. An emitter follower has ______________input impedance?

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

5. Emitter follower is a _______________circuit?

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

6. 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

7. 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

8. A feedback circuit usually employs _________________ network?

   A. Resistive
   B. Capacitive
   C. Inductive
   D. None of the above

9. Negative feedback is employed in __________________?

   A. Oscillators
   B. Rectifiers
   C. Amplifiers
   D. None of the above

10. 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