The Positive Feedback Circuit in a Wien-Bridge Oscillator Is Used

question 7

Multiple Choice

The positive feedback circuit in a Wien-bridge oscillator is used to

• A) determine the frequency of operation.
• B) control the gain of the circuit.
• C) bias the negative feedback network.
• D) prevent unwanted oscillations.

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Definitions:

Optic Nerve

The nerve that transmits visual information from the retina to the brain.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light images into nerve signals sent to the brain.

Conjunctiva

The thin, transparent membrane that covers the white part of the eyeball and the inner surfaces of the eyelids.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the amount of light entering the eye.