| 1 |
The symbol of p-n-p transistor is |
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| 2 |
Photodiode is used for: |
- A. Detection of current
- B. Detection of heat
- C. Detection of light
- D. Both a & b
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| 3 |
The central region of a transistor is called. |
- A. Emitter
- B. Collector
- C. Base
- D. Neutral
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| 4 |
Conversion of A.C into D.C is called: |
- A. Compton effect
- B. Rectification
- C. Amplification
- D. Pair production
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| 5 |
Transistor was invented by: |
- A. Bardeen
- B. Micheal faraday
- C. Lenz
- D. Newton
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| 6 |
Base of transistor is of order: |
- A. 10<sup>-11</sup>m
- B. 10<sup>6</sup>m
- C. 10<sup>-8</sup>m
- D. 10<sup>-6</sup>m
|
| 7 |
The output of two input is zero only when its. |
- A. Both inputs are zero
- B. Either input is zero
- C. Both inputs are one
- D. Either input is one
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| 8 |
The potential difference across the depletion region of germanium is. |
- A. 0.3 V
- B. 0.5 V
- C. 0.7 V
- D. 0.8 V
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| 9 |
The ratio of potential barriers of Ge to Si at room temperatrue is. |
- A. 7:3
- B. 1:3
- C. 2:5
- D. 3:7
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| 10 |
The device which are required to convert various physical quantities into electric voltage are called. |
- A. Filters
- B. Rectifiers
- C. Amplifiers
- D. Sensors
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