| 1 |
In a certain circuit, I<sub>B = 40 µA, </sub>I<sub>C</sub><sup> </sup>= 20 mA |
- A. 450 amp
- B. 0.45 amp
- C. 5 m amp
- D. 500 amp
|
| 2 |
X=A+B is the mathematical notation for. |
- A. OR gate
- B. NOR gate
- C. NAND gate
- D. AND gate
|
| 3 |
the number of terminals in a semiconductor diode are |
|
| 4 |
For automatic Switching of streetlight, the op amplifier is used as. |
- A. Inductor
- B. Converter
- C. Comparator
- D. Thermistor
|
| 5 |
When transistor are used in digital circuits they usually operate in the : |
- A. Active region
- B. Break down region
- C. Saturation & cutoff regions
- D. Linear region
|
| 6 |
The potential barrier for silicon is. |
- A. 0.7 V
- B. 0.5 V
- C. 0.3 V
- D. 0.9 V
|
| 7 |
Which factor does not affect the conductivity of PN-Junction diode. |
- A. Doping
- B. Temperature
- C. Voltage
- D. Pressure
|
| 8 |
In a transistor, collector current is controlled by: |
- A. Collector voltage
- B. Base current
- C. Collector resistance
- D. All of the above
|
| 9 |
A transistor has: |
- A. Two regions
- B. Three regions
- C. Single regions
- D. Four regions
|
| 10 |
OR gate is represented by: |
- A. X = A+B
- B. X=A.B
- C. X=A+B
- D. X=A.B
|
