Unit II

2. Feedback does not change the gain ........ Product.
4. Negative feedback reduces the amplifier distortion by the amount of ........ gain.
5. For class A operation, Q point is located at the ........ of the load line.
8. One of the advantages of negative feedback is a highly ....... amplifier gain.
10. A feedback amplifier essentially consist of an amplifier and a ........ circuit.
12. Negative feedback is also called ........ feedback.
13. Negative feedback in amplifiers gives reduced gain but ........ bandwidth.
14. Crossover distortion occurs in ........ amplifier.

1. The resistance between base region and ........ contact is called base spreading resistance.
3. Negative feedback is frequently used in ........ circuits.
6. Frequency and phase distortion are due to the ...... of the circuit elements.
7. Positive feedback is often used in ........ circuits.
9. In a CB amplifier, a positive going input signal produces a ........ going output signal.
10. The term βA is called ........ factor.
11. There is phase ........ of input signal in a CE amplifier.