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WorksheetsTransistor Quiz
Total questions: 20
Worksheet time: 10mins
A transistor has.........
one pn junction
two pn junctions
three pn junctions
four pa junctions
The number of depletion layers in a transis-for is
four
one
three
two
The base of a transistor is
heavily
moderately
lightly
none of the above
The element that has the biggest size in a transistor is
collector
emitter
base
collector-base junction
In a pup transistor, the current carriers are
acceptor ions
donor ions
free electrons
holes
The collector of a transistor is......... doped.
heavily
lightly
moderately
none of the above
A transistor is a operated device.
current
reverse bias
a wide depletion layer
low resistance
none of the above
The input impedance of a transistor is....
high
very high
low
almost zero
Most of the majority carriers from the emitter
recombine in the base
recombine in the emitter
pass through the base region to the collector
none of the above
The current IB .....
electron current
hole current
donor ion current
acceptor ion current
In a transistor,
IC = IE + IB
I_B = IC+ IK
IE= IC - IB
IE= IC+ IB
The (alpha) α of a transistor
1
more than 1
less than 1
none of the above
IC = α*IE + .......
I B
ICEO
ICBO
β IB
In an pnp transistor, .... are the minority carriers.
free electrons
holes
donor ions.
acceptor ions
The emitter of a transistor is doped.
lightly
heavily
moderately
none of the above
In a transistor, the base current is about....... of emitter current.
25%
99%
5%
50%
The output impedance of a transistor is.....
low
high
moderate
equal
In a transistorIc =100mA and IE = 100.5 , the value of β is..........
100
50
about 1
200
The relation between β and α is.
1/(1-α)
α/(1-α)
(1-α)/α
α-t/(1-α)
At the base-emitter junction of a transistor, one finds...
low resistance
reverse bias
wide depletion region
all of the above
