Physics · Electronic Devices
A cascade of common-source amplifiers in a unity gain feedback configuration oscillates when:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1the loop gain is greater than or equal to 1 and the phase shift is 180° (or an odd multiple of 180°).✓
- 2the loop gain is less than 1 and the phase shift is greater than 180°.
- 3the loop gain is greater than 1 and the phase shift is less than 180°.
- 4the loop gain is less than 1 and the phase shift is less than 180°.
Correct answer
the loop gain is greater than or equal to 1 and the phase shift is 180° (or an odd multiple of 180°).
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