Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise :: Electronic Devices and Circuits - Section 12
| 1. |
One electron volt is equivalent to |
| A. |
1.6 x 10-10 joule | | B. |
1.6 x 10-13 joule | | C. |
1.6 x 10-16 joule | | D. |
1.6 x 10-19 joule |
Answer: Option D
Explanation:
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| 2. |
Resistivity of electrical conductors is most affected by |
| A. |
Pressure | | B. |
temperature | | C. |
composition | | D. |
ageing |
Answer: Option B
Explanation:
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| 3. |
Wiedemann-Franz law correlates |
| A. |
electrical and thermal conductivities | | B. |
electron arrangement in shells | | C. |
temperature and photo electric emission | | D. |
all of the above |
Answer: Option A
Explanation:
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| 4. |
In bipolar transistors dc current gain is |
Answer: Option B
Explanation:
|
| 5. |
Holes and electrons move in opposite directions. |
Answer: Option A
Explanation:
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