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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 13
16.
When a diode is forward biased, the diode current is
high
low
zero
low or zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
In p type semiconductors the conduction due to holes ( = σp ) is (where e = charge on hole, μp is hole mobility and p is hole concentration)
peμp
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
At room temperature, the current in the, intrinsic semiconductor is due to
holes
electrons
ions
holes and electrons
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which of these is also called 'hot carrier diode'?
PIN diode
LED
Photo diode
Schottky diode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
A d.c. power supply has an open circuit voltage of 100 V. When the full load current is drawn, the output drops to 80 V. The percentage voltage regulation is
97.25%
75%
50%
25%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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