⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs231
If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?
A6 mA
BmA
C3 mA
D1 mA
232
The circuit that provides the best stabilization of operating point is___________________?
ABase resistor bias
BCollector feedback bias
CPotential divider bias
DNone of the above
233
Transistor biasing is generally provided by a_______________?
ABiasing circuit
BBias battery
CDiode
DNone of the above
234
Transistor biasing is done to keep _____________in the circuit?
AProper direct current
BProper alternating current
CThe base current small
DCollector current small
235
For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?
ABe zero
BBe 0.01 V
CNot fall below 0.7 V
DBe between 0 V and 0.1 V
236
The zero signal IC is generally ______________ mA in the initial stages of a transistor amplifier?
A4
B1
C3
DMore than 10
237
The point of intersection of d.c. and a.c. load lines represents __________________?
AOperating point
BCurrent gain
CVoltage gain
DNone of the above
238
For faithful amplification by a transistor circuit, the value of VCE should______________for silicon transistor?
ANot fall below 1 V
BBe zero
CBe 0.2 V
DNone of the above
239
Operating point represents__________________?
AValues of IC and VCE when signal is applied
BThe magnitude of signal
CZero signal values of IC and VCE
DNone of the above
240
The value of stability factor for a base resistor bias is________________?
ARB (ß+1)
B(ß+1)RC
C(ß+1)
D1-ß