MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The unit of gain is ________ |
| A. | Joules |
| B. | Decibels |
| C. | Its unit less |
| D. | Watts |
| Answer» D. Watts | |
| 2. |
Tunnel diode can be used as an active device because__________ |
| A. | its negative resistance region is used |
| B. | it conducts at a faster rate |
| C. | it triggers the flow of electrons in reverse bias |
| D. | of tunneling effect |
| Answer» B. it conducts at a faster rate | |
| 3. |
Attenuators are active devices. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
To overcome the problem of representation of large values of gain, which of the following units was introduced? |
| A. | Decibels |
| B. | Joules |
| C. | Pascals |
| D. | Farads |
| Answer» B. Joules | |
| 5. |
The overall gain of multiple amplifiers in cascade can be expressed as__________ (A1, A2, A3 are individual gains) |
| A. | A1-A2-A3 |
| B. | A1+A2+A3 |
| C. | A1/A2*A3 |
| D. | A1*A2*A3 |
| Answer» E. | |
| 6. |
How do amplifiers work without violating Law of Conservation of Energy? |
| A. | They amplify one factor of the input and reduce others |
| B. | They work on the law of conservation of mass |
| C. | They violate the Law of Conservation of Energy |
| D. | They amplify the signal by taking an input from an external source |
| Answer» E. | |
| 7. |
Active devices can also be used as_________ |
| A. | Amplifiers |
| B. | Choppers |
| C. | Converters |
| D. | Inverters |
| Answer» B. Choppers | |
| 8. |
A transistor is a current controlled device because_______________ |
| A. | In the base region movement of charge carrier is because of the electrons which are minority charge carrier in the base region |
| B. | In the collector region movement of charge carrier is because of the electrons which are minority charge carrier in the collector region |
| C. | In the base region movement of charge carrier is because of the holes which are majority charge carrier in the base region |
| D. | In the collector region movement of charge carrier is because of the holes which are majority charge carrier in the base region |
| Answer» B. In the collector region movement of charge carrier is because of the electrons which are minority charge carrier in the collector region | |
| 9. |
Which of the following elements comprise of the passive devices? |
| A. | Resistors, Capacitors and SCRs |
| B. | Vacuum Tubes, SCRs and Diodes |
| C. | Transformers, Inductors and Diodes |
| D. | Transformers, TRIACs and DIACs |
| Answer» D. Transformers, TRIACs and DIACs | |
| 10. |
An active device is one which ___________ |
| A. | Mechanically controls electron flow |
| B. | Electrically controls electron flow |
| C. | Pneumatically controls electron flow |
| D. | Automatically controls electron flow |
| Answer» C. Pneumatically controls electron flow | |