| 1 |
Minimum number of semi conductor diodes required for full wave rectification are. |
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| 2 |
The semi conductor diode has the property of |
- A. Two way conduction
- B. Zero conduction
- C. One way conduction
- D. Amplification
|
| 3 |
Output resistance of an op amp is |
- A. High
- B. Low
- C. Zero
- D. Equal to input resistance
|
| 4 |
During negative half cycle of A.c then p-n junction offers. |
- A. High resistance
- B. Low resistance
- C. No resistance
- D. All of these
|
| 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 difference across depletion region in case of Si is |
- A. 0.6 volt
- B. 0.9 volt
- C. 0.7 volt
- D. 0.2 volt
|
| 7 |
Automatic function of street light can be done by the use of. |
- A. Inductor
- B. Rectifier
- C. Comparator
- D. emf
|
| 8 |
A PN junction can not be sued a. |
- A. Rectifier
- B. Amplifier
- C. Detector
- D. LED
|
| 9 |
Most of the electrons in the base of an NPN transistor flow: |
- A. Out of the base lead
- B. Into the collector
- C. Into the emit
- D. Into the base supply
|
| 10 |
Which one has greater cone of impurity among all: |
- A. Emitter
- B. Base
- C. Collector
- D. All are pure
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