Analog Electronics An Op-Amp comparator circuit employs +ve feedback. both B and C. no feedback. -ve feedback. +ve feedback. both B and C. no feedback. -ve feedback. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The Barkhausen criterion for an oscillator The phase of a feedback signal with respect to input should be 0° or 360° Both A and C Loop gain should be unity Loop gain should be less than unity The phase of a feedback signal with respect to input should be 0° or 360° Both A and C Loop gain should be unity Loop gain should be less than unity ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics When the source voltage increases in a zener regulator, which of these electric current remain approximately constant ? None of these. Zener current. Series current. Load current. None of these. Zener current. Series current. Load current. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics What is the most important fact about the collector current? It approximately equals the emitter current. It equals the base current divided by the current gain. It is small. It is measured in milliampere. It approximately equals the emitter current. It equals the base current divided by the current gain. It is small. It is measured in milliampere. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The knee voltage (cut in voltage) of silicon diode 0.7 V. 0.2 V. 1.0 V. 0.8 V. 0.7 V. 0.2 V. 1.0 V. 0.8 V. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics With both bases grounded, the only offset that produces an error is the β. input offset voltage. input offset current. input bias current. β. input offset voltage. input offset current. input bias current. ANSWER DOWNLOAD EXAMIANS APP
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