| 1 |
A diode characteristics curve is a plot between |
- A. Current and resistance
- B. Voltage and time
- C. Voltage and current
- D. Current and time
|
| 2 |
For normal transistor the emitter current can be given by |
- A. I<sub>E</sub> = I<sub>C</sub>
- B. I<sub>E</sub> = I<sub>C</sub> + I<sub>B</sub>
- C. I<sub>E</sub> = I<sub>B</sub>
- D. None of these
|
| 3 |
For automatic Switching of streetlight, the op amplifier is used as. |
- A. Inductor
- B. Converter
- C. Comparator
- D. Thermistor
|
| 4 |
A.C. can be converted into D.C. by |
- A. An oscillator
- B. Detector
- C. An amplifier
- D. Rectifier
|
| 5 |
In photovoltaic cell, current is directly proportional to. |
- A. Wavelength of light
- B. Intensity of light
- C. Energy
- D. Frequency of light
|
| 6 |
Which device is used as a rectifier? |
- A. Capacitor
- B. Transistor
- C. Diode
- D. Transformer
|
| 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
|
| 8 |
The reverse saturation current in a PN junction diode is only due to: |
- A. Majority carriers
- B. Minoritycarriers
- C. Acceptor ions
- D. Donor ions
|
| 9 |
Improper bisting of a transistor circiut produces: |
- A. Heavy loading of emitter current
- B. Distortion in the output output signal
- C. Excessive heat at collector terminal
- D. Faculty location of load line
|
| 10 |
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
|
