Analog Electronics The Barkhausen criterion for an oscillator Loop gain should be unity Both A and C The phase of a feedback signal with respect to input should be 0° or 360° Loop gain should be less than unity Loop gain should be unity Both A and C The phase of a feedback signal with respect to input should be 0° or 360° Loop gain should be less than unity ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics If the series resistance increases in an unloaded zener regulator, the zener current increases. stays the same. decreases. equals the voltage divided by the resistance. increases. stays the same. decreases. equals the voltage divided by the resistance. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Base-10 system is also called as Decimal system Binary system Decinary system Tenth system Decimal system Binary system Decinary system Tenth system ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics When a junction diode is Reverse Biased then diode acts like ....................... Close switch None of these Short switch An open switch Close switch None of these Short switch An open switch ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics In a JFET, if the gate voltage Vgs is made more negative, then channel conductivity increases. channel conductivity decreases. depletion region decreases. channel electric current increases . channel conductivity increases. channel conductivity decreases. depletion region decreases. channel electric current increases . ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Voltage Series (feedback also called series-shunt feedback) results in Increase in both input & output impedances Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Decrease in input impedance & increase in output impedance Increase in both input & output impedances Decreases in both input & output impedances Increase in input impedance & decreases in output impedance Decrease in input impedance & increase in output impedance ANSWER DOWNLOAD EXAMIANS APP
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