⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs311
The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?
AAvoid voltage gain drop
BForward bias the emitter
CReduce noise in the amplifier
DNone of the above
312
The purpose of d.c. conditions in a transistor is to___________________?
AReverse bias the emitter
BForward bias the collector
CSet up operating point
DNone of the above
313
An advantage of RC coupling scheme is the___________?
AGood impedance matching
BEconomy
CHigh efficiency
DNone of the above
314
In an RC coupled amplifier, the voltage gain over mid-frequency range_____________?
AChanges abruptly with frequency
BIs constant
CChanges uniformly with frequency
DNone of the above
315
RC coupling is used for_____________amplification?
AVoltage
BCurrent
CPower
DNone of the above
316
A radio receiver has____________of amplification?
AOne stage
BTwo stages
CThree stages
DMore than one stages
317
A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ________________________?
ARC
BRC || RE
CRC – RE
DRC + RE
318
For highest power gain, one would use _________________configuration?
ACC
BCB
CCE
Dnone of the above
319
A transistor converts __________________?
Ac. power
Bc. power into
Chigh resistance into low resistance
Dnone of the above
320
In transistor amplifiers, we generally use______________ capacitors?
AElectrolytic
BMica
CPaper
DAir