⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs221
At absolute temperature, an intrinsic semiconductor has________________?
AA few free electrons
BMany holes
CMany free electrons
DNo holes or free electrons
222
A reverse biased pn junction has resistance of the order of________________?
AO
BkO
CMO
DNone of the above
223
A reverse bias pn junction has_____________?
AVery narrow depletion layer
BAlmost no current
CVery low resistance
DLarge current flow
224
The barrier voltage at a pn junction for germanium is about________________?
A5 V
B3 V
CZero
D0.3 V Updated by: Abdul Samad
225
The random motion of holes and free electrons due to thermal agitation is called______________?
ADiffusion
BPressure
CIonisation
DNone of the above
226
A hole and electron in close proximity would tend to________________?
ARepel each other
BAttract each other
CHave no effect on each other
DNone of the above
227
What would happen, if smaller logic modules are utilized for performing logical functions associated with FPGA? A. Propagation delay will increase B. FPGA area will increase C. Wastage of logic modules will not be prevented D. Number of interconnected paths in device will decrease ?
AA & B
BC & D
CA & D
DB & C
228
Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins ?
APLCC
BQFP
CPGA
DBGA
229
In Boolean algebra, the bar sign (-) indicates__________________?
AOR operation
BAND operation
CNOT operation
DNone of the above
230
The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by___________________?
A100 µA
B25 µA
C20 µA
D50 µA