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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 10
16.
In a bipolar transistor which current is smallest
collector current
base current
emitter current
any of the three currents
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
With increasing temperature, the electrical conductivity of metals
increases
decreases
increases first and then decreases
remains unaffected
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The reverse saturation current in a semiconductor diode consists of
avalanche current
zener current
minority carrier current
minority carrier current and surface leakage current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The current gain of a transistor is the ratio of
emitter current to base current
emitter current to collector current
collector current to base current
collector current to emitter current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
If a sample of Ge and a sample of Si have the same impurity density are kept at room temperature
both will have equal value of resistivity
both will have equal - ve of resistivity
resistivity of germanium will be higher than that of silicon
resistivity of silicon will be higher than of Ge
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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