Analog Electronics Voltage Series (feedback also called series-shunt feedback) results in Decrease in input impedance & increase in output impedance Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Increase in both input & output impedances Decrease in input impedance & increase in output impedance Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Increase in both input & output impedances ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics For emitter bias, the voltage at the emitter is 0.7 V less than the base voltage. emitter voltage. collector voltage. ground voltage. base voltage. emitter voltage. collector voltage. ground voltage. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics For an NPN transistor in normal bias only majority carriers cross the collector junction. Je is forward biased and Jc is reverse biased. the emitter junction has high resistance. only holes cross the collector junction. only majority carriers cross the collector junction. Je is forward biased and Jc is reverse biased. the emitter junction has high resistance. only holes cross the collector junction. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics What is the charge of mobile charge carriers of holes ? No charged Positively charged Negatively charged None of these No charged Positively charged Negatively charged None of these ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics One of the following is the primary function of an oscillator produces sinusoidal oscillations generates sustained oscillations at a constant amplitude and specific frequency None of these generates non sinusoidal waveforms produces sinusoidal oscillations generates sustained oscillations at a constant amplitude and specific frequency None of these generates non sinusoidal waveforms ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The Barkhausen criterion for an oscillator Both A and C Loop gain should be less than unity The phase of a feedback signal with respect to input should be 0° or 360° Loop gain should be unity Both A and C Loop gain should be less than unity The phase of a feedback signal with respect to input should be 0° or 360° Loop gain should be unity ANSWER DOWNLOAD EXAMIANS APP
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