At the unity-gain frequency, the open-loop voltage gain is very large AV(mid). 1. zero. TRUE ANSWER : ? YOUR ANSWER : ?
Class B amplifier is biased nearly twice cut-off. None of these at midpoint of load line. just at cut-off. TRUE ANSWER : ? YOUR ANSWER : ?
Suppose the base resistor is open. The Q point will be at the lower end of the load line. off the load line. in the middle of the load line. at the upper end of the load line. TRUE ANSWER : ? YOUR ANSWER : ?
If the series resistance increases in an unloaded zener regulator, the zener current stays the same. increases. equals the voltage divided by the resistance. decreases. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not obey the Ohm's law? Semiconductor Bilateral device None of these Resistor TRUE ANSWER : ? YOUR ANSWER : ?
The voltage gain of a loaded differential amp is large than the unloaded voltage gain. equal to RC / re. smaller than the unloaded voltage gain. impossible to determine. TRUE ANSWER : ? YOUR ANSWER : ?
An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz TRUE ANSWER : ? YOUR ANSWER : ?
The transit time of the electric current carriers through the channel of a JFET decides it’s ________________ characteristics. source. source and drain. drain. gate. TRUE ANSWER : ? YOUR ANSWER : ?
What will be the Potential barrier for Si Diode ? 0.3 V 0.07 V 0.7 V 0.05 V TRUE ANSWER : ? YOUR ANSWER : ?