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Chapter 18 - Electronics - 6
1.
When a p-type substance is sandwiched between two n-type substances then the transistor type will be called as:
a) p-n-p transistor
b) p-p-n transistor regions
c) n-n-p transistor
d) n-p-n transistor
2.
The central reign of a n-p-n transistor is called as:
a) Base
b) Collector
c) Barrier
d) Emitter
3.
In general most of the electrical circuits make use of:
a) p-n-p transistors
b) n-n transistors
c) p-p transistors
d) n-p-n transistors
4.
The ratio of collector current IC to the base current IB is always constant for a given transistor this ratio (β) is called as:
a) Multiple current of a transistor
b) None
c) Current gain of a transistor
d) Resultant current of a transistor
5.
For a normal biased transistor, the emitter current IE can be given by:
a) IE=IC
b) None
c) IE=IB
d) IE=IC+IB
6.
Conversion of low AC voltage into high AC voltage(Hint β=IC/IB) is called:
a) Magnification
b) All of the above
c) Amplification
d) Rectification
7.
Two terminals of op-amp are respectively called:
a) Negative output(-) and positive input (+)
b) Negative input(-) and positive output (+)
c) Negative input(-) and positive input (+)
d) Inverting input(-) and non-inverting input(+)
8.
Germanian belong to
a) Fourth group element
b) Sixth group element
c) Fifth group element
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