Electronics and Communication Engineering - Analog Electronics - Discussion

Discussion Forum : Analog Electronics - Section 2 (Q.No. 18)
18.
The input voltage for starting oscillations in an oscillator is caused by
negative feedback
positive feedback
noise voltage in resistors
a special generator
Answer: Option
Explanation:

The amplifier in the oscillator amplifies the noise voltages. However phase shift around the closed loop is zero at only one frequency. Therefore, only this frequency appears at output.

Discussion:
Be the first person to comment on this question !

Post your comments here:

Your comments will be displayed after verification.