1Slew rate of an op-amp is:AThe bandwidth at unity gainBThe input impedanceCThe DC gainDThe maximum rate of change of output voltageView AnswerDiscussWorkspaceReportSaveEasy
2Negative feedback in an amplifier:ACauses oscillationBReduces gain but improves stability and bandwidthCReduces bandwidthDIncreases gainView AnswerDiscussWorkspaceReportSaveEasy
3Which oscillator uses an RC network with three sections giving 180° phase shift?AHartley oscillatorBRC phase-shift oscillatorCColpitts oscillatorDCrystal oscillatorView AnswerDiscussWorkspaceReportSaveEasy
4The Barkhausen criterion requires a loop gain of:A0BInfiniteC1 with a total phase shift of 0° or 360°D−1 with 90° phaseView AnswerDiscussWorkspaceReportSaveEasy
5A voltage follower (buffer) op-amp has a gain of:AInfiniteB−1C0D1View AnswerDiscussWorkspaceReportSaveEasy