⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs291
The purpose of capacitors in a transistor amplifier is to___________________?
Ac. component
BCool the transistor
CCouple or bypass
DProvide biasing
292
In a CE amplifier, voltage gain =____________________ x RAC/Rin?
Aα
B(1 + α)
C(1+ β)
Dβ
293
If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is_____________________?
A165
B165 x 104
C100
DNone of the above
294
In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is _________________?
A180o
B270o
C90o
D0o
295
In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of _____________________?
ARC + RL
BRC || RL
CRL
DRC
296
When a transistor amplifier is operating, the current in any branch is _______________?
Ac. and
Bc. only
Cc. only
Dc.
297
The phase difference between the output and input voltages of a CE amplifier is _____________?
A180o
B0o
C90o
D270o
298
If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?
A20 V
B5 V
C2 V
D10 V
299
The input capacitor in an amplifier is the______________ capacitor?
ACoupling
BBypass
CLeakage
DNone of the above
300
The slope of a.c. load line is ______________ that of d.c. load line?
AThe same as
BMore than
CLess than
DNone of the above