MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The forward resistance for a PIN diode is given by ________ |
| A. | RF = W/σP |
| B. | RF = W/σN |
| C. | RF = WσP |
| D. | RF = WσN |
| Answer» C. RF = WσP | |
| 2. |
In the application of frequency models, the value of forward current is _____ |
| A. | IF = A(µPP + µNN)q |
| B. | IF = A(µPN + µNP)q |
| C. | IF = A(µPP – µNN)q |
| D. | IF = A(µPN – µNP)q |
| Answer» B. IF = A(µPN + µNP)q | |
| 3. |
In high frequency model, the values of resistance ‘R’ and capacitance ‘C’ are _______ |
| A. | 0.1 to 10KΩ and 0.02 to 2pF respectively |
| B. | 1 to 10KΩ and 0.02 to 2pF respectively |
| C. | 10 to 100KΩ and 0.02 to 2pF respectively |
| D. | 0.1 to 10KΩ and 2 to 20pF respectively |
| Answer» B. 1 to 10KΩ and 0.02 to 2pF respectively | |
| 4. |
During reverse bias, the PIN diode acts as _______ |
| A. | Variable resistor |
| B. | Switch |
| C. | Variable capacitor |
| D. | LED |
| Answer» D. LED | |
| 5. |
IN_THE_APPLICATION_OF_FREQUENCY_MODELS,_THE_VALUE_OF_FORWARD_CURRENT_IS______?$ |
| A. | IF = A(µ<sub>P</sub>P + µ<sub>N</sub>N)q |
| B. | IF = A(µ<sub>P</sub>N + µ<sub>N</sub>P)q |
| C. | IF = A(µ<sub>P</sub>P – µ<sub>N</sub>N)q |
| D. | IF = A(µ<sub>P</sub>N – µ<sub>N</sub>P)q |
| Answer» B. IF = A(¬¨¬®¬¨¬µ<sub>P</sub>N + ¬¨¬®¬¨¬µ<sub>N</sub>P)q | |
| 6. |
The_forward_resistance_for_a_PIN_diode_is_given_by_________$ |
| A. | R<sub>F</sub> = W/σP |
| B. | R<sub>F</sub> = W/σN |
| C. | R<sub>F</sub> = WσP |
| D. | R<sub>F</sub> = WσN |
| Answer» C. R<sub>F</sub> = W‚âà√¨‚àö√¢P | |
| 7. |
Which of the following is true about a PIN diode? |
| A. | it’s photosensitive in reverse bias |
| B. | it offers low resistance and low capacitance |
| C. | it has a decreased reversed breakdown voltage |
| D. | carrier storage is low |
| Answer» B. it offers low resistance and low capacitance | |
| 8. |
What happens in PIN diode for low frequency model? |
| A. | reactance decreases |
| B. | conductance increases |
| C. | resistance increases |
| D. | reactance increases |
| Answer» E. | |
| 9. |
In high frequency model, the values of resistance ‘R’ and capacitance ‘C’ are _______$ |
| A. | 0.1 to 10KΩ and 0.02 to 2pF respectively |
| B. | 1 to 10KΩ and 0.02 to 2pF respectively |
| C. | 10 to 100KΩ and 0.02 to 2pF respectively |
| D. | 0.1 to 10KΩ and 2 to 20pF respectively |
| Answer» B. 1 to 10K‚Äö√Ñ√∂‚àö√´¬¨‚àÇ and 0.02 to 2pF respectively | |
| 10. |
The applications for PIN diode are __________ |
| A. | Microwave switch |
| B. | LED |
| C. | Voltage regulator |
| D. | Amplifier |
| Answer» B. LED | |
| 11. |
When the p and n regions are used for high resistivity, the depletion region at the respective places is called _________ |
| A. | Q and ϒ regions |
| B. | ϒ and π regions |
| C. | Q and π regions |
| D. | π and ϒ regions |
| Answer» E. | |
| 12. |
During forward bias, the PIN diode acts as _______ |
| A. | a variable resistor |
| B. | a variable capacitor |
| C. | a switch |
| D. | an LED |
| Answer» B. a variable capacitor | |
| 13. |
PIN diode is a photosensitive diode because of _______ |
| A. | large current flow in p and n region |
| B. | depletion layer increases giving a larger surface area |
| C. | stronger covalent bonds |
| D. | low carrier storage |
| Answer» C. stronger covalent bonds | |