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WorksheetsEDC - I
Total questions: 15
Worksheet time: 4mins
In a semiconductor which of the following carries can contribute to the current?
Electrons
Holes
Both
None
Electrons from valence band rises to conduction band when the temperature is greater than 0 k. Is it True or False?
True
False
In which of the following semiconductor, the concentration of the holes and electrons is equal?
Intrinsic
Extrinsic
Compound
Elemental
Does a semiconductor satisfy the ohm’s law?
True
False
If the positive terminal of the battery is connected to the anode of the diode, then it is known as
Forward biased
Reverse biased
Equilibrium
Schottky barrier
During reverse bias, a small current develops known as
Forward current
Reverse current
Reverse saturation current
Active current
If the voltage of the potential barrier is V0. A voltage V is applied to the input, at what moment will the barrier disappear?
V< V0
V= V0
V> V0
V<< V0
Is possible to measure the voltage across the potential barrier through a voltmeter?
Yes
No
The advantages over the vacuum triode for a junction transistor
high power consumption
high efficiency
large size
less doping
In an NPN transistor, the arrow is pointed towards_________
a) the collector
b) the base
c) depends on the configuration
d) the emitter
In the saturated region, the transistor acts like a_________
a) poor transistor
b) amplifier
c) open switch
d) closed switch
If the emitter-base junction is forward biased and the collector-base junction is reverse biased, what will be the region of operation for a transistor?
a) cut off region
b) saturated region
c) inverted region
d) active region
The transfer of a signal in a transistor is_________
a) low to high resistance
b) high to low resistance
c) collector to base junction
d) emitter to base junction
Why is the silicon mostly chosen when compared to germanium?
a) low power consumption
b) high efficiency
c) greater working temperature
d) large ICBO
A transistor has an IC of 100mA and IB of 0.5mA. What is the value of αdc?
a) 0.565
b) 0.754
c) 1.24
d) 0.995
