MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 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. |
For the voltage divider circuit, if a diode is connected in reverse direction across the base Find the value of β? (Vd=1.2v and input is 1V) |
| A. | 0 |
| B. | 50 |
| C. | 100 |
| D. | cannot be determined |
| Answer» E. | |
| 2. |
Changes in the temperature will not affect the bias point. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
For a Voltage divider circuit having RC=R1=R2=RE=1KΩ, if VCC=20V, find IC when Vce = VCC? |
| A. | 1mA |
| B. | 2mA |
| C. | 20mA |
| D. | 0 |
| Answer» E. | |
| 4. |
For a Voltage divider bias circuit, having R1=R2=10KΩ, RC=4.7 KΩ, RE=1 KΩ, What is the value of collector current at saturation if VCC=10V? |
| A. | 1A |
| B. | 10mA |
| C. | 0.87mA |
| D. | 1ma |
| Answer» C. 0.87mA | |
| 5. |
For a fixed bias circuit having RC=4.7KΩ and RB=1KΩ, VCC=10V, and base current at Bias point was found to be 0.2µA, Find β? |
| A. | 100 |
| B. | 106 |
| C. | 125 |
| D. | 0 |
| Answer» C. 125 | |
| 6. |
For a Fixed bias circuit having RC=2.2KΩ, RB=240Ω, VCC=12v and current amplification factor is 100 and the current flowing through the base is 20µA, the value if Collector current in saturation is_____________ |
| A. | 5.4mA |
| B. | 3mA |
| C. | 1mA |
| D. | 0A |
| Answer» B. 3mA | |
| 7. |
CHANGES_IN_THE_TEMPERATURE_WILL_NOT_AFFECT_THE_BIAS_POINT.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
For_the_voltage_divider_circuit,_if_a_diode_is_connected_in_reverse_direction_across_the_base_Find_the_value_of_β?_(Vd=1.2v_and_input_is_1V)$# |
| A. | 0 |
| B. | 50 |
| C. | 100 |
| D. | cannot be determined |
| Answer» E. | |
| 9. |
For a Voltage divider bias circuit, having R1=R2=10KΩ, RC=4.7 KΩ, RE=1 KΩ, What is the value of collector current at saturation if VCC=10V?$ |
| A. | 1A |
| B. | 10mA |
| C. | 0.87mA |
| D. | 1ma |
| Answer» C. 0.87mA | |
| 10. |
For a fixed bias circuit having RC=4.7KΩ and RB=1KΩ, VCC=10V, and base current at Bias point was found to be 0.2µA, Find β?$ |
| A. | 100 |
| B. | 106 |
| C. | 125 |
| D. | 0 |
| Answer» C. 125 | |
| 11. |
The bias point of a transistor occurs when the supply voltage exceeds the breakdown voltage of a transistor. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
For a Fixed bias circuit having RC=2.2KΩ, RB=240Ω, VCC=12v and current amplification factor is 100 and the current flowing through the base is 20µA, the value if Collector current in saturation is_____________$ |
| A. | 5.4mA |
| B. | 3mA |
| C. | 1mA |
| D. | 0A |
| Answer» B. 3mA | |
| 13. |
The Q-point of a transistor is made to shift between Active and cut off Region, then how does the transistor behave? |
| A. | Switch |
| B. | Amplifier |
| C. | Inverter |
| D. | Bulb |
| Answer» B. Amplifier | |
| 14. |
Q point can be set to work on active region requires particular conditions. What are they? |
| A. | BE reverse biased and BC forward biased |
| B. | BE reverse biased and BC reverse biased |
| C. | BE forward biased and BC reverse biased |
| D. | BE forward biased and BC forward biased |
| Answer» D. BE forward biased and BC forward biased | |
| 15. |
Where should be the bias point set in order to make transistor work as an amplifier? |
| A. | Cut off |
| B. | Active |
| C. | Saturation |
| D. | Cut off and Saturation |
| Answer» C. Saturation | |