| 1 |
In photovoltaic cell, current is directly proportional to. |
- A. Wavelength of light
- B. Intensity of light
- C. Energy
- D. Frequency of light
|
| 2 |
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
|
| 3 |
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
|
| 4 |
Reverse current flows due to |
- A. Majority charge carriers
- B. Minority charge carriers
- C. Electrons
- D. Holes
|
| 5 |
The device which is used as amplifier and works with the negative feedback is. |
- A. Operational amplifier
- B. P-n-p transistor
- C. n-p-n transistor
- D. Transistor
|
| 6 |
For normal use: |
- A. Emitter base function is reversed biased
- B. Collector base junction is reserved biased
- C. Emitter base junction is forward biased
- D. Both c and b
|
| 7 |
Photo diode is used for detection of. |
- A. Heat
- B. Magnet
- C. Current
- D. Light
|
| 8 |
A diode characteristics curve is a plot between |
- A. Current and resistance
- B. Voltage and time
- C. Voltage and current
- D. Current and time
|
| 9 |
A transistor has: |
- A. Two regions
- B. Three regions
- C. Single regions
- D. Four regions
|
| 10 |
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
|
