Electronics and Communication Engineering - Electronic Devices and Circuits

21.
The resistivity of a semiconductor
increases as the temperature increases
decreases as the temperature increases
remains constant even when temperature varies
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
The voltage at which Avalanche occurs is known as
cut in voltage
barrier voltage
breakdown voltage
depletion voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
If the energy gap of a semiconductor is 1.1 eV, then it would be
opaque to visible light
transparent to visible light
transparent to ultraviolet radiation
transparent to infrared radiation
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
In intrinsic semiconductor the increase in conductivity per degree increase in temperature is about
2%
6%
15%
25%
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
The ripple factor for a bridge rectifier is
0.406
1.21
1.11
2.22
Answer: Option
Explanation:
No answer description is available. Let's discuss.