| 1 |
The impurity in the germinium is usually in the ratio of |
- A. 1:10<sup>6</sup>
- B. 1:10<sup>4</sup>
- C. 1:10<sup>8</sup>
- D. 1:10<sup>10</sup>
|
| 2 |
Which factor does not affect the conductivity of PN-Junction diode. |
- A. Doping
- B. Temperature
- C. Voltage
- D. Pressure
|
| 3 |
The open loop gain of the amplifier is order of. |
- A. 10<sup>6</sup>
- B. 10<sup>5</sup>
- C. 10<sup>7</sup>
- D. 10<sup>3</sup>
|
| 4 |
Which component of the transistor has greater contrition of impurity. |
- A. Base
- B. Emitter
- C. Collector
- D. Emitter and collector
|
| 5 |
In a transistor, collector current is controlled by: |
- A. Collector voltage
- B. Base current
- C. Collector resistance
- D. All of the above
|
| 6 |
Which one has greater cone of impurity among all: |
- A. Emitter
- B. Base
- C. Collector
- D. All are pure
|
| 7 |
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
|
| 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
|
| 9 |
An expression for gain of an inverting amplifier is |
- A.
- B.
- C. (R<sub>1</sub>R<sub>2</sub>)
- D. None of these
|
| 10 |
The ratio Beta in transistor is called. |
- A. Voltage gain
- B. Emitter gain
- C. Current gain
- D. Nuclear gain
|
