Assertion : In an oscillator, the feedback is in the same phase which is called as positive feedback. Reason: If the feedback voltage is in opposite p

Question

Assertion : In an oscillator, the feedback is in the same phase which is called as positive feedback. Reason: If the feedback voltage is in opposite p

Assertion : In an oscillator, the feedback is in the same phase which is called as positive feedback.
Reason: If the feedback voltage is in opposite phase, the gain is greater than one.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true not but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
In an oscillator, the feedback is in the same phase i.e. positive feedback. If the feedback voltage is in opposite phase ie negative feedback, the gain is less than one and it can never work as oscillator. It will be an amplifier with reduced gain.

4 views Answered 2023-02-05 15:29