NEET Physics Question - Semiconductor Physics

Assertion (A): In an oscillator, the feedback is in the same phase which is called as positive feedback.

Reason (R): If the feedback voltage is in opposite phase the gain is greater than one.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is true; for sustained oscillations, positive feedback (in-phase) is required. Reason (R) is false; opposite phase feedback, known as negative feedback, typically reduces the amplifier's gain, not increases it.

Rankers Physics

Oscillator Feedback

Solution:

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